20904693

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{2677}}^1$

素因数の和:2836

約数の個数: 16

約数和(自身を含む): 29565120

約数和(自身を除く): 8660427

約数列:

[1, 3, 19, 57, 137, 411, 2603, 2677, 7809, 8031, 50863, 152589, 366749, 1100247, 6968231, 20904693]

約数ペア:

[(1, 20904693), (3, 6968231), (19, 1100247), (57, 366749), (137, 152589), (411, 50863), (2603, 8031), (2677, 7809)]