21837220

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{14957}}^1$

素因数の和:15039

約数の個数: 24

約数和(自身を含む): 46489464

約数和(自身を除く): 24652244

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 14957, 29914, 59828, 74785, 149570, 299140, 1091861, 2183722, 4367444, 5459305, 10918610, 21837220]

約数ペア:

[(1, 21837220), (2, 10918610), (4, 5459305), (5, 4367444), (10, 2183722), (20, 1091861), (73, 299140), (146, 149570), (292, 74785), (365, 59828), (730, 29914), (1460, 14957)]