21188940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{353149}}^1$

素因数の和:353161

約数の個数: 24

約数和(自身を含む): 59329200

約数和(自身を除く): 38140260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 353149, 706298, 1059447, 1412596, 1765745, 2118894, 3531490, 4237788, 5297235, 7062980, 10594470, 21188940]

約数ペア:

[(1, 21188940), (2, 10594470), (3, 7062980), (4, 5297235), (5, 4237788), (6, 3531490), (10, 2118894), (12, 1765745), (15, 1412596), (20, 1059447), (30, 706298), (60, 353149)]