21703708

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{417379}}^1$

素因数の和:417396

約数の個数: 12

約数和(自身を含む): 40903240

約数和(自身を除く): 19199532

約数列:

[1, 2, 4, 13, 26, 52, 417379, 834758, 1669516, 5425927, 10851854, 21703708]

約数ペア:

[(1, 21703708), (2, 10851854), (4, 5425927), (13, 1669516), (26, 834758), (52, 417379)]