128880003

素因数分解:

$3^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{54311}}^1$

素因数の和:54434

約数の個数: 16

約数和(自身を含む): 198130176

約数和(自身を除く): 69250173

約数列:

[1, 3, 7, 21, 113, 339, 791, 2373, 54311, 162933, 380177, 1140531, 6137143, 18411429, 42960001, 128880003]

約数ペア:

[(1, 128880003), (3, 42960001), (7, 18411429), (21, 6137143), (113, 1140531), (339, 380177), (791, 162933), (2373, 54311)]