855491

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1$

素因数の和:123

約数の個数: 24

約数和(自身を含む): 1149120

約数和(自身を除く): 293629

約数列:

[1, 7, 13, 17, 49, 79, 91, 119, 221, 553, 637, 833, 1027, 1343, 1547, 3871, 7189, 9401, 10829, 17459, 50323, 65807, 122213, 855491]

約数ペア:

[(1, 855491), (7, 122213), (13, 65807), (17, 50323), (49, 17459), (79, 10829), (91, 9401), (119, 7189), (221, 3871), (553, 1547), (637, 1343), (833, 1027)]