20121621

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{17791}}^1$

素因数の和:17836

約数の個数: 16

約数和(自身を含む): 29890560

約数和(自身を除く): 9768939

約数列:

[1, 3, 13, 29, 39, 87, 377, 1131, 17791, 53373, 231283, 515939, 693849, 1547817, 6707207, 20121621]

約数ペア:

[(1, 20121621), (3, 6707207), (13, 1547817), (29, 693849), (39, 515939), (87, 231283), (377, 53373), (1131, 17791)]