20718665

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{22159}}^1$

素因数の和:22192

約数の個数: 16

約数和(自身を含む): 28719360

約数和(自身を除く): 8000695

約数列:

[1, 5, 11, 17, 55, 85, 187, 935, 22159, 110795, 243749, 376703, 1218745, 1883515, 4143733, 20718665]

約数ペア:

[(1, 20718665), (5, 4143733), (11, 1883515), (17, 1218745), (55, 376703), (85, 243749), (187, 110795), (935, 22159)]