20982364

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{31039}}^1$

素因数の和:31069

約数の個数: 18

約数和(自身を含む): 39762240

約数和(自身を除く): 18779876

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 31039, 62078, 124156, 403507, 807014, 1614028, 5245591, 10491182, 20982364]

約数ペア:

[(1, 20982364), (2, 10491182), (4, 5245591), (13, 1614028), (26, 807014), (52, 403507), (169, 124156), (338, 62078), (676, 31039)]