21041356

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{25913}}^1$

素因数の和:25953

約数の個数: 24

約数和(自身を含む): 43535520

約数和(自身を除く): 22494164

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 406, 812, 25913, 51826, 103652, 181391, 362782, 725564, 751477, 1502954, 3005908, 5260339, 10520678, 21041356]

約数ペア:

[(1, 21041356), (2, 10520678), (4, 5260339), (7, 3005908), (14, 1502954), (28, 751477), (29, 725564), (58, 362782), (116, 181391), (203, 103652), (406, 51826), (812, 25913)]