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"Variant of a theorem of Erdős on the sum-of-proper-divisors function."
Carl Pomerance, Hee-Sung Yang (2014)
- Carl Pomerance, Hee-Sung Yang:
Variant of a theorem of Erdős on the sum-of-proper-divisors function. Math. Comput. 83(288): 1903-1913 (2014)
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