21145796

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{20411}}^1$

素因数の和:20459

約数の個数: 24

約数和(自身を含む): 43436736

約数和(自身を除く): 22290940

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 20411, 40822, 81644, 142877, 285754, 571508, 755207, 1510414, 3020828, 5286449, 10572898, 21145796]

約数ペア:

[(1, 21145796), (2, 10572898), (4, 5286449), (7, 3020828), (14, 1510414), (28, 755207), (37, 571508), (74, 285754), (148, 142877), (259, 81644), (518, 40822), (1036, 20411)]