31003215

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{677}}^1$

素因数の和:799

約数の個数: 32

約数和(自身を含む): 51549696

約数和(自身を除く): 20546481

約数列:

[1, 3, 5, 15, 43, 71, 129, 213, 215, 355, 645, 677, 1065, 2031, 3053, 3385, 9159, 10155, 15265, 29111, 45795, 48067, 87333, 144201, 145555, 240335, 436665, 721005, 2066881, 6200643, 10334405, 31003215]

約数ペア:

[(1, 31003215), (3, 10334405), (5, 6200643), (15, 2066881), (43, 721005), (71, 436665), (129, 240335), (213, 145555), (215, 144201), (355, 87333), (645, 48067), (677, 45795), (1065, 29111), (2031, 15265), (3053, 10155), (3385, 9159)]