31107921

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41981}}^1$

素因数の和:42016

約数の個数: 16

約数和(自身を含む): 47019840

約数和(自身を除く): 15911919

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 41981, 125943, 545753, 797639, 1637259, 2392917, 10369307, 31107921]

約数ペア:

[(1, 31107921), (3, 10369307), (13, 2392917), (19, 1637259), (39, 797639), (57, 545753), (247, 125943), (741, 41981)]