21007415

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{2671}}^1$

素因数の和:2711

約数の個数: 24

約数和(自身を含む): 29851584

約数和(自身を除く): 8844169

約数列:

[1, 5, 11, 13, 55, 65, 121, 143, 605, 715, 1573, 2671, 7865, 13355, 29381, 34723, 146905, 173615, 323191, 381953, 1615955, 1909765, 4201483, 21007415]

約数ペア:

[(1, 21007415), (5, 4201483), (11, 1909765), (13, 1615955), (55, 381953), (65, 323191), (121, 173615), (143, 146905), (605, 34723), (715, 29381), (1573, 13355), (2671, 7865)]