21546040

素因数分解:

$2^3\times 5^1\times {\mathrm{538651}}^1$

素因数の和:538662

約数の個数: 16

約数和(自身を含む): 48478680

約数和(自身を除く): 26932640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 538651, 1077302, 2154604, 2693255, 4309208, 5386510, 10773020, 21546040]

約数ペア:

[(1, 21546040), (2, 10773020), (4, 5386510), (5, 4309208), (8, 2693255), (10, 2154604), (20, 1077302), (40, 538651)]