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Integers Divisible by the Sum of their Prime Factors
Published online by Cambridge University Press: 21 December 2009
Abstract
For each integer n ≥ 2, let β(n) be the sum of the distinct prime divisors of n and let (x) stand for the set of composite integers n ≤ x such that n is a multiple of β(n). Upper and lower bounds are obtained for the cardinality of (x).
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- Copyright © University College London 2005
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