21208734812

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{311893159}}^1$

素因数の和:311893180

約数の個数: 12

約数和(自身を含む): 39298538160

約数和(自身を除く): 18089803348

約数列:

[1, 2, 4, 17, 34, 68, 311893159, 623786318, 1247572636, 5302183703, 10604367406, 21208734812]

約数ペア:

[(1, 21208734812), (2, 10604367406), (4, 5302183703), (17, 1247572636), (34, 623786318), (68, 311893159)]