18780521744

素因数分解:

$2^4\times {\mathrm{54521}}^1\times {\mathrm{21529}}^1$

素因数の和:76058

約数の個数: 20

約数和(自身を含む): 36389618460

約数和(自身を除く): 17609096716

約数列:

[1, 2, 4, 8, 16, 21529, 43058, 54521, 86116, 109042, 172232, 218084, 344464, 436168, 872336, 1173782609, 2347565218, 4695130436, 9390260872, 18780521744]

約数ペア:

[(1, 18780521744), (2, 9390260872), (4, 4695130436), (8, 2347565218), (16, 1173782609), (21529, 872336), (43058, 436168), (54521, 344464), (86116, 218084), (109042, 172232)]