21563575

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{4127}}^1$

素因数の和:4167

約数の個数: 24

約数和(自身を含む): 30712320

約数和(自身を除く): 9148745

約数列:

[1, 5, 11, 19, 25, 55, 95, 209, 275, 475, 1045, 4127, 5225, 20635, 45397, 78413, 103175, 226985, 392065, 862543, 1134925, 1960325, 4312715, 21563575]

約数ペア:

[(1, 21563575), (5, 4312715), (11, 1960325), (19, 1134925), (25, 862543), (55, 392065), (95, 226985), (209, 103175), (275, 78413), (475, 45397), (1045, 20635), (4127, 5225)]