31717881

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{647}}^1$

素因数の和:1085

約数の個数: 24

約数和(自身を含む): 49533120

約数和(自身を除く): 17815239

約数列:

[1, 3, 9, 13, 39, 117, 419, 647, 1257, 1941, 3771, 5447, 5823, 8411, 16341, 25233, 49023, 75699, 271093, 813279, 2439837, 3524209, 10572627, 31717881]

約数ペア:

[(1, 31717881), (3, 10572627), (9, 3524209), (13, 2439837), (39, 813279), (117, 271093), (419, 75699), (647, 49023), (1257, 25233), (1941, 16341), (3771, 8411), (5447, 5823)]