21489325

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{6011}}^1$

素因数の和:6045

約数の個数: 24

約数和(自身を含む): 31310496

約数和(自身を除く): 9821171

約数列:

[1, 5, 11, 13, 25, 55, 65, 143, 275, 325, 715, 3575, 6011, 30055, 66121, 78143, 150275, 330605, 390715, 859573, 1653025, 1953575, 4297865, 21489325]

約数ペア:

[(1, 21489325), (5, 4297865), (11, 1953575), (13, 1653025), (25, 859573), (55, 390715), (65, 330605), (143, 150275), (275, 78143), (325, 66121), (715, 30055), (3575, 6011)]