21819400

素因数分解:

$2^3\times 5^2\times {\mathrm{109097}}^1$

素因数の和:109113

約数の個数: 24

約数和(自身を含む): 50730570

約数和(自身を除く): 28911170

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 109097, 218194, 436388, 545485, 872776, 1090970, 2181940, 2727425, 4363880, 5454850, 10909700, 21819400]

約数ペア:

[(1, 21819400), (2, 10909700), (4, 5454850), (5, 4363880), (8, 2727425), (10, 2181940), (20, 1090970), (25, 872776), (40, 545485), (50, 436388), (100, 218194), (200, 109097)]