21417845

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1721}}^1$

素因数の和:1876

約数の個数: 16

約数和(自身を含む): 27276480

約数和(自身を除く): 5858635

約数列:

[1, 5, 19, 95, 131, 655, 1721, 2489, 8605, 12445, 32699, 163495, 225451, 1127255, 4283569, 21417845]

約数ペア:

[(1, 21417845), (5, 4283569), (19, 1127255), (95, 225451), (131, 163495), (655, 32699), (1721, 12445), (2489, 8605)]