21176492

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{311419}}^1$

素因数の和:311440

約数の個数: 12

約数和(自身を含む): 39238920

約数和(自身を除く): 18062428

約数列:

[1, 2, 4, 17, 34, 68, 311419, 622838, 1245676, 5294123, 10588246, 21176492]

約数ペア:

[(1, 21176492), (2, 10588246), (4, 5294123), (17, 1245676), (34, 622838), (68, 311419)]