21802960

素因数分解:

$2^4\times 5^1\times {\mathrm{272537}}^1$

素因数の和:272550

約数の個数: 20

約数和(自身を含む): 50692068

約数和(自身を除く): 28889108

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 272537, 545074, 1090148, 1362685, 2180296, 2725370, 4360592, 5450740, 10901480, 21802960]

約数ペア:

[(1, 21802960), (2, 10901480), (4, 5450740), (5, 4360592), (8, 2725370), (10, 2180296), (16, 1362685), (20, 1090148), (40, 545074), (80, 272537)]