20904138

素因数分解:

$2^1\times 3^2\times {\mathrm{151}}^1\times {\mathrm{7691}}^1$

素因数の和:7850

約数の個数: 24

約数和(自身を含む): 45598176

約数和(自身を除く): 24694038

約数列:

[1, 2, 3, 6, 9, 18, 151, 302, 453, 906, 1359, 2718, 7691, 15382, 23073, 46146, 69219, 138438, 1161341, 2322682, 3484023, 6968046, 10452069, 20904138]

約数ペア:

[(1, 20904138), (2, 10452069), (3, 6968046), (6, 3484023), (9, 2322682), (18, 1161341), (151, 138438), (302, 69219), (453, 46146), (906, 23073), (1359, 15382), (2718, 7691)]