18138421

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{997}}^1$

素因数の和:1140

約数の個数: 16

約数和(自身を含む): 21844224

約数和(自身を除く): 3705803

約数列:

[1, 7, 23, 113, 161, 791, 997, 2599, 6979, 18193, 22931, 112661, 160517, 788627, 2591203, 18138421]

約数ペア:

[(1, 18138421), (7, 2591203), (23, 788627), (113, 160517), (161, 112661), (791, 22931), (997, 18193), (2599, 6979)]