85404879

素因数分解:

$3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{12437}}^1$

素因数の和:12559

約数の個数: 24

約数和(自身を含む): 142290720

約数和(自身を除く): 56885841

約数列:

[1, 3, 7, 9, 21, 63, 109, 327, 763, 981, 2289, 6867, 12437, 37311, 87059, 111933, 261177, 783531, 1355633, 4066899, 9489431, 12200697, 28468293, 85404879]

約数ペア:

[(1, 85404879), (3, 28468293), (7, 12200697), (9, 9489431), (21, 4066899), (63, 1355633), (109, 783531), (327, 261177), (763, 111933), (981, 87059), (2289, 37311), (6867, 12437)]