20798215

素因数分解:

$5^1\times {\mathrm{113}}^1\times {\mathrm{131}}^1\times {\mathrm{281}}^1$

素因数の和:530

約数の個数: 16

約数和(自身を含む): 25461216

約数和(自身を除く): 4663001

約数列:

[1, 5, 113, 131, 281, 565, 655, 1405, 14803, 31753, 36811, 74015, 158765, 184055, 4159643, 20798215]

約数ペア:

[(1, 20798215), (5, 4159643), (113, 184055), (131, 158765), (281, 74015), (565, 36811), (655, 31753), (1405, 14803)]