21703495

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{6469}}^1$

素因数の和:6546

約数の個数: 16

約数和(自身を含む): 28882080

約数和(自身を除く): 7178585

約数列:

[1, 5, 11, 55, 61, 305, 671, 3355, 6469, 32345, 71159, 355795, 394609, 1973045, 4340699, 21703495]

約数ペア:

[(1, 21703495), (5, 4340699), (11, 1973045), (55, 394609), (61, 355795), (305, 71159), (671, 32345), (3355, 6469)]