31139563

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{20129}}^1$

素因数の和:20166

約数の個数: 16

約数和(自身を含む): 40582080

約数和(自身を除く): 9442517

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 20129, 140903, 261677, 342193, 1831739, 2395351, 4448509, 31139563]

約数ペア:

[(1, 31139563), (7, 4448509), (13, 2395351), (17, 1831739), (91, 342193), (119, 261677), (221, 140903), (1547, 20129)]