21866860

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{8609}}^1$

素因数の和:8745

約数の個数: 24

約数和(自身を含む): 46287360

約数和(自身を除く): 24420500

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 8609, 17218, 34436, 43045, 86090, 172180, 1093343, 2186686, 4373372, 5466715, 10933430, 21866860]

約数ペア:

[(1, 21866860), (2, 10933430), (4, 5466715), (5, 4373372), (10, 2186686), (20, 1093343), (127, 172180), (254, 86090), (508, 43045), (635, 34436), (1270, 17218), (2540, 8609)]