hyperperfect number (English, noun)
expansion: hyperperfect number (plural hyperperfect numbers)
Senses:
topics: mathematics
number-theory
sciences
glosses: Any natural number n for which, for some positive integer k, n = 1 + k(σ(n) - n - 1), where σ(n) is the sum of the positive divisors of n.
Forms:
form: hyperperfect numbers
tags: plural