1211486978

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{1627}}^1\times {\mathrm{2203}}^1$

素因数の和:3858

約数の個数: 24

約数和(自身を含む): 1969873488

約数和(自身を除く): 758386510

約数列:

[1, 2, 13, 26, 169, 338, 1627, 2203, 3254, 4406, 21151, 28639, 42302, 57278, 274963, 372307, 549926, 744614, 3584281, 7168562, 46595653, 93191306, 605743489, 1211486978]

約数ペア:

[(1, 1211486978), (2, 605743489), (13, 93191306), (26, 46595653), (169, 7168562), (338, 3584281), (1627, 744614), (2203, 549926), (3254, 372307), (4406, 274963), (21151, 57278), (28639, 42302)]