680986521

素因数分解:

$3^4\times {\mathrm{257}}^1\times {\mathrm{32713}}^1$

素因数の和:32982

約数の個数: 20

約数和(自身を含む): 1021265652

約数和(自身を除く): 340279131

約数列:

[1, 3, 9, 27, 81, 257, 771, 2313, 6939, 20817, 32713, 98139, 294417, 883251, 2649753, 8407241, 25221723, 75665169, 226995507, 680986521]

約数ペア:

[(1, 680986521), (3, 226995507), (9, 75665169), (27, 25221723), (81, 8407241), (257, 2649753), (771, 883251), (2313, 294417), (6939, 98139), (20817, 32713)]