21946171

素因数分解:

${\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:187

約数の個数: 24

約数和(自身を含む): 25297920

約数和(自身を除く): 3351749

約数列:

[1, 13, 31, 59, 71, 169, 403, 767, 923, 1829, 2201, 4189, 5239, 9971, 11999, 23777, 28613, 54457, 129859, 309101, 371969, 707941, 1688167, 21946171]

約数ペア:

[(1, 21946171), (13, 1688167), (31, 707941), (59, 371969), (71, 309101), (169, 129859), (403, 54457), (767, 28613), (923, 23777), (1829, 11999), (2201, 9971), (4189, 5239)]