31221885

素因数分解:

$3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{15889}}^1$

素因数の和:16028

約数の個数: 16

約数和(自身を含む): 50339520

約数和(自身を除く): 19117635

約数列:

[1, 3, 5, 15, 131, 393, 655, 1965, 15889, 47667, 79445, 238335, 2081459, 6244377, 10407295, 31221885]

約数ペア:

[(1, 31221885), (3, 10407295), (5, 6244377), (15, 2081459), (131, 238335), (393, 79445), (655, 47667), (1965, 15889)]