21174505

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{3407}}^1$

素因数の和:3536

約数の個数: 16

約数和(自身を含む): 27972864

約数和(自身を除く): 6798359

約数列:

[1, 5, 11, 55, 113, 565, 1243, 3407, 6215, 17035, 37477, 187385, 384991, 1924955, 4234901, 21174505]

約数ペア:

[(1, 21174505), (5, 4234901), (11, 1924955), (55, 384991), (113, 187385), (565, 37477), (1243, 17035), (3407, 6215)]