20916337

素因数分解:

${\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{509}}^1$

素因数の和:660

約数の個数: 16

約数和(自身を含む): 23562000

約数和(自身を除く): 2645663

約数列:

[1, 13, 29, 109, 377, 509, 1417, 3161, 6617, 14761, 41093, 55481, 191893, 721253, 1608949, 20916337]

約数ペア:

[(1, 20916337), (13, 1608949), (29, 721253), (109, 191893), (377, 55481), (509, 41093), (1417, 14761), (3161, 6617)]