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Summary Of: Deficient number
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Prime number
|
Composite number
|
Powerful number
|
Square-free number
|
Achilles number
|
Perfect number
|
Almost perfect number
|
Quasiperfect number
|
Multiply perfect number
|
Hyperperfect number
|
Superperfect number
|
Unitary perfect number
|
Semiperfect number
|
Primitive semiperfect number
|
Practical number
|
Abundant number
|
Highly abundant number
|
Superabundant number
|
Colossally abundant number
|
Highly composite number
|
Superior highly composite number
|
Weird number
|
Amicable number
|
Friendly number
|
Sociable number
|
Solitary number
|
Sublime number
|
Harmonic divisor number
|
Frugal number
|
Equidigital number
|
Extravagant number
|
Divisor function
|
Divisor
|
Prime factor
|
Factorization
|
view
|
talk
|
mathematics
|
sum-of-divisors function
|
divisors
|
OEIS
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1
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2
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3
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4
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5
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7
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8
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9
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10
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11
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13
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14
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15
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16
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17
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19
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21
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22
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23
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25
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26
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27
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even and odd
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prime numbers
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divisors
|
perfect numbers
|
perfect numbers
|
abundant numbers
|
natural numbers
|
Nicomachus
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100
|
Abundant number
|
Almost perfect number
|
Amicable number
|
Sociable number
|
Eric W. Weisstein
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MathWorld
|
PlanetMath
|
Categories
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Integer sequences
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This article is licensed under the
GNU Free Documentation License
. It uses material from the
Wikipedia article "Deficient number"
.
