20927905

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{359}}^1$

素因数の和:584

約数の個数: 16

約数和(自身を含む): 25660800

約数和(自身を除く): 4732895

約数列:

[1, 5, 89, 131, 359, 445, 655, 1795, 11659, 31951, 47029, 58295, 159755, 235145, 4185581, 20927905]

約数ペア:

[(1, 20927905), (5, 4185581), (89, 235145), (131, 159755), (359, 58295), (445, 47029), (655, 31951), (1795, 11659)]