21428404

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{193}}^1\times {\mathrm{677}}^1$

素因数の和:915

約数の個数: 24

約数和(自身を含む): 38670408

約数和(自身を除く): 17242004

約数列:

[1, 2, 4, 41, 82, 164, 193, 386, 677, 772, 1354, 2708, 7913, 15826, 27757, 31652, 55514, 111028, 130661, 261322, 522644, 5357101, 10714202, 21428404]

約数ペア:

[(1, 21428404), (2, 10714202), (4, 5357101), (41, 522644), (82, 261322), (164, 130661), (193, 111028), (386, 55514), (677, 31652), (772, 27757), (1354, 15826), (2708, 7913)]