21347212

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{271}}^1\times {\mathrm{419}}^1$

素因数の和:741

約数の個数: 24

約数和(自身を含む): 38384640

約数和(自身を除く): 17037428

約数列:

[1, 2, 4, 47, 94, 188, 271, 419, 542, 838, 1084, 1676, 12737, 19693, 25474, 39386, 50948, 78772, 113549, 227098, 454196, 5336803, 10673606, 21347212]

約数ペア:

[(1, 21347212), (2, 10673606), (4, 5336803), (47, 454196), (94, 227098), (188, 113549), (271, 78772), (419, 50948), (542, 39386), (838, 25474), (1084, 19693), (1676, 12737)]