20413910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{16871}}^1$

素因数の和:16900

約数の個数: 24

約数和(自身を含む): 40391568

約数和(自身を除く): 19977658

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 16871, 33742, 84355, 168710, 185581, 371162, 927905, 1855810, 2041391, 4082782, 10206955, 20413910]

約数ペア:

[(1, 20413910), (2, 10206955), (5, 4082782), (10, 2041391), (11, 1855810), (22, 927905), (55, 371162), (110, 185581), (121, 168710), (242, 84355), (605, 33742), (1210, 16871)]