21500476

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{2801}}^1$

素因数の和:2925

約数の個数: 24

約数和(自身を含む): 40012560

約数和(自身を除く): 18512084

約数列:

[1, 2, 4, 19, 38, 76, 101, 202, 404, 1919, 2801, 3838, 5602, 7676, 11204, 53219, 106438, 212876, 282901, 565802, 1131604, 5375119, 10750238, 21500476]

約数ペア:

[(1, 21500476), (2, 10750238), (4, 5375119), (19, 1131604), (38, 565802), (76, 282901), (101, 212876), (202, 106438), (404, 53219), (1919, 11204), (2801, 7676), (3838, 5602)]