Source: wikibot/multiply-perfect-number
= Multiply perfect number
{wiki=Multiply_perfect_number}
A **multiply perfect number** is a specific type of natural number that can be described in terms of its divisors. Specifically, a natural number \\( n \\) is called a \\( k \\)-multiply perfect number if the sum of its divisors (including \\( n \\) itself), denoted as \\( \\sigma(n) \\), is equal to \\( k \\) times the number itself.