superperfect

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Adjective

1. {{lb|en|math}} Being or relating to a class of [[positive]] [[integer]]s satisfying <math>\sigma^2(n)=\sigma(\sigma(n))=2n\, ,</math> where σ is the [[divisor]] [[function]]. They are a [[generalization]] of [[perfect number]]s.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.