21092510

素因数分解:

$2^1\times 5^1\times {\mathrm{661}}^1\times {\mathrm{3191}}^1$

素因数の和:3859

約数の個数: 16

約数和(自身を含む): 38035872

約数和(自身を除く): 16943362

約数列:

[1, 2, 5, 10, 661, 1322, 3191, 3305, 6382, 6610, 15955, 31910, 2109251, 4218502, 10546255, 21092510]

約数ペア:

[(1, 21092510), (2, 10546255), (5, 4218502), (10, 2109251), (661, 31910), (1322, 15955), (3191, 6610), (3305, 6382)]