proper divisor


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proper divisor

[¦präp·ər di′vīz·ər]
(mathematics)
A proper divisor of a positive integer n is any divisor other than 1 and n.
References in periodicals archive ?
The S, C and H in the trigraph SCH might therefore be thought of as being deficient when they occur separately, but when in unison, something wonderful happens: Adding together 19, 3 and 8, we obtain 30, which is an abundant integer and not a deficient integer because it is less than the sum of its proper divisors, i.
Proof: Suppose n is a perfect number and d its proper divisor.
2] Liu Hongyan and Zhang Wenpeng, On the divisor products and proper divisor products sequences, Smarandache Notions Journal, 13(2002), 128-133.