21619676

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{379}}^1\times {\mathrm{1097}}^1$

素因数の和:1493

約数の個数: 24

約数和(自身を含む): 40889520

約数和(自身を除く): 19269844

約数列:

[1, 2, 4, 13, 26, 52, 379, 758, 1097, 1516, 2194, 4388, 4927, 9854, 14261, 19708, 28522, 57044, 415763, 831526, 1663052, 5404919, 10809838, 21619676]

約数ペア:

[(1, 21619676), (2, 10809838), (4, 5404919), (13, 1663052), (26, 831526), (52, 415763), (379, 57044), (758, 28522), (1097, 19708), (1516, 14261), (2194, 9854), (4388, 4927)]