21781654

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{3109}}^1$

素因数の和:3255

約数の個数: 16

約数和(自身を含む): 34035840

約数和(自身を除く): 12254186

約数列:

[1, 2, 31, 62, 113, 226, 3109, 3503, 6218, 7006, 96379, 192758, 351317, 702634, 10890827, 21781654]

約数ペア:

[(1, 21781654), (2, 10890827), (31, 702634), (62, 351317), (113, 192758), (226, 96379), (3109, 7006), (3503, 6218)]