From Longman Dictionary of Contemporary Englishdivisordi‧vi‧sor /dəˈvaɪzə $ -ər/ noun [countable] technical HMNthe number by which another number is to be dividedExamples from the Corpus

divisor• Some of those may not be divisors.• So you have to say that um no proper divisor is a perfect number.• So I think all of these are the proper divisors.• In our example the divisor is divisible by 1000, which leads to three unchanged digits.• The divisors can be varied: Scandinavian countries divide by 1.4,3, 5 and 7, which aids medium-sized parties.• It appears that he did search for 3-dimensional examples but could find none without divisors of zero.