20499665

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{3821}}^1$

素因数の和:3892

約数の個数: 16

約数和(自身を含む): 26142480

約数和(自身を除く): 5642815

約数列:

[1, 5, 29, 37, 145, 185, 1073, 3821, 5365, 19105, 110809, 141377, 554045, 706885, 4099933, 20499665]

約数ペア:

[(1, 20499665), (5, 4099933), (29, 706885), (37, 554045), (145, 141377), (185, 110809), (1073, 19105), (3821, 5365)]