31391017

素因数分解:

$7^3\times {\mathrm{71}}^1\times {\mathrm{1289}}^1$

素因数の和:1381

約数の個数: 16

約数和(自身を含む): 37152000

約数和(自身を除く): 5760983

約数列:

[1, 7, 49, 71, 343, 497, 1289, 3479, 9023, 24353, 63161, 91519, 442127, 640633, 4484431, 31391017]

約数ペア:

[(1, 31391017), (7, 4484431), (49, 640633), (71, 442127), (343, 91519), (497, 63161), (1289, 24353), (3479, 9023)]