Source: wikibot/quasiperfect-number

= Quasiperfect number
{wiki=Quasiperfect_number}

A **quasiperfect number** is a hypothetical concept in number theory. It is defined as a positive integer \\( n \\) for which the sum of its proper divisors (all divisors excluding the number itself) is equal to \\( n + 1 \\).