21625725

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{2383}}^1$

素因数の和:2418

約数の個数: 36

約数和(自身を含む): 39316928

約数和(自身を除く): 17691203

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 121, 165, 275, 363, 605, 825, 1815, 2383, 3025, 7149, 9075, 11915, 26213, 35745, 59575, 78639, 131065, 178725, 288343, 393195, 655325, 865029, 1441715, 1965975, 4325145, 7208575, 21625725]

約数ペア:

[(1, 21625725), (3, 7208575), (5, 4325145), (11, 1965975), (15, 1441715), (25, 865029), (33, 655325), (55, 393195), (75, 288343), (121, 178725), (165, 131065), (275, 78639), (363, 59575), (605, 35745), (825, 26213), (1815, 11915), (2383, 9075), (3025, 7149)]