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PUMaC 2021 · 数论（B 组） · 第 2 题

PUMaC 2021 — Number Theory (Division B) — Problem 2

专题
Discrete Math / 离散数学
难度
L3
来源
PUMaC

题目详情

  1. The smallest three positive proper divisors of an integer n are d < d < d and they satisfy 1 2 3 d + d + d = 57 . Find the sum of the possible values of d . 1 2 3 2 5 2 3 3 5 2
解析
  1. The smallest three positive proper divisors of an integer n are d < d < d so that d + d + d = 1 2 3 1 2 3