21764360

素因数分解:

$2^3\times 5^1\times {\mathrm{544109}}^1$

素因数の和:544120

約数の個数: 16

約数和(自身を含む): 48969900

約数和(自身を除く): 27205540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 544109, 1088218, 2176436, 2720545, 4352872, 5441090, 10882180, 21764360]

約数ペア:

[(1, 21764360), (2, 10882180), (4, 5441090), (5, 4352872), (8, 2720545), (10, 2176436), (20, 1088218), (40, 544109)]