21055911

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{2281}}^1$

素因数の和:2482

約数の個数: 16

約数和(自身を含む): 29903328

約数和(自身を除く): 8847417

約数列:

[1, 3, 17, 51, 181, 543, 2281, 3077, 6843, 9231, 38777, 116331, 412861, 1238583, 7018637, 21055911]

約数ペア:

[(1, 21055911), (3, 7018637), (17, 1238583), (51, 412861), (181, 116331), (543, 38777), (2281, 9231), (3077, 6843)]