21002044

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{15959}}^1$

素因数の和:16017

約数の個数: 24

約数和(自身を含む): 42900480

約数和(自身を除く): 21898436

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 15959, 31918, 63836, 111713, 223426, 446852, 750073, 1500146, 3000292, 5250511, 10501022, 21002044]

約数ペア:

[(1, 21002044), (2, 10501022), (4, 5250511), (7, 3000292), (14, 1500146), (28, 750073), (47, 446852), (94, 223426), (188, 111713), (329, 63836), (658, 31918), (1316, 15959)]