19198220

素因数分解:

$2^2\times 5^1\times {\mathrm{959911}}^1$

素因数の和:959920

約数の個数: 12

約数和(自身を含む): 40316304

約数和(自身を除く): 21118084

約数列:

[1, 2, 4, 5, 10, 20, 959911, 1919822, 3839644, 4799555, 9599110, 19198220]

約数ペア:

[(1, 19198220), (2, 9599110), (4, 4799555), (5, 3839644), (10, 1919822), (20, 959911)]