🌐EnglishEnglishEspañolFrançaisItalianoSvenskaРусский한국어中文日本語EntityQ846701· pop 13· linked from 223 articlesbetrothed numberspairs of positive integers such that the sum of the proper divisors of either number is one more than the other numberAvailable in 13 languagesEspañolFrançais中文日本語РусскийItalianoHungarianRomanianSvenskaUkrainianzh_yueConnectionsprime numberEntitydivisorEntityCategoriesArithmetic dynamicsDivisor functionInteger sequences