21033278

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{34939}}^1$

素因数の和:34991

約数の個数: 16

約数和(自身を含む): 36896640

約数和(自身を除く): 15863362

約数列:

[1, 2, 7, 14, 43, 86, 301, 602, 34939, 69878, 244573, 489146, 1502377, 3004754, 10516639, 21033278]

約数ペア:

[(1, 21033278), (2, 10516639), (7, 3004754), (14, 1502377), (43, 489146), (86, 244573), (301, 69878), (602, 34939)]