21188360

素因数分解:

$2^3\times 5^1\times {\mathrm{529709}}^1$

素因数の和:529720

約数の個数: 16

約数和(自身を含む): 47673900

約数和(自身を除く): 26485540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 529709, 1059418, 2118836, 2648545, 4237672, 5297090, 10594180, 21188360]

約数ペア:

[(1, 21188360), (2, 10594180), (4, 5297090), (5, 4237672), (8, 2648545), (10, 2118836), (20, 1059418), (40, 529709)]