21788425

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{733}}^1$

素因数の和:813

約数の個数: 24

約数和(自身を含む): 28670040

約数和(自身を除く): 6881615

約数列:

[1, 5, 25, 29, 41, 145, 205, 725, 733, 1025, 1189, 3665, 5945, 18325, 21257, 29725, 30053, 106285, 150265, 531425, 751325, 871537, 4357685, 21788425]

約数ペア:

[(1, 21788425), (5, 4357685), (25, 871537), (29, 751325), (41, 531425), (145, 150265), (205, 106285), (725, 30053), (733, 29725), (1025, 21257), (1189, 18325), (3665, 5945)]