🌐EnglishEnglishEspañolFrançaisSvenskaРусский한국어中文EntityQ2370031· pop 9· linked from 66 articlesunitary perfect numberinteger which is the sum of its positive proper unitary divisors, not including the number itselfAvailable in 9 languagesEspañolFrançais中文РусскийEsperantoSvenskaTamilzh_yuevia Wikidata sitelinks · CC0Connectionsprime numberEntitydivisorEntityCategoriesInteger sequencesPerfect numbers