21907400

素因数分解:

$2^3\times 5^2\times {\mathrm{109537}}^1$

素因数の和:109553

約数の個数: 24

約数和(自身を含む): 50935170

約数和(自身を除く): 29027770

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 109537, 219074, 438148, 547685, 876296, 1095370, 2190740, 2738425, 4381480, 5476850, 10953700, 21907400]

約数ペア:

[(1, 21907400), (2, 10953700), (4, 5476850), (5, 4381480), (8, 2738425), (10, 2190740), (20, 1095370), (25, 876296), (40, 547685), (50, 438148), (100, 219074), (200, 109537)]