21201080

素因数分解:

$2^3\times 5^1\times {\mathrm{530027}}^1$

素因数の和:530038

約数の個数: 16

約数和(自身を含む): 47702520

約数和(自身を除く): 26501440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 530027, 1060054, 2120108, 2650135, 4240216, 5300270, 10600540, 21201080]

約数ペア:

[(1, 21201080), (2, 10600540), (4, 5300270), (5, 4240216), (8, 2650135), (10, 2120108), (20, 1060054), (40, 530027)]