21297550

素因数分解:

$2^1\times 5^2\times {\mathrm{193}}^1\times {\mathrm{2207}}^1$

素因数の和:2412

約数の個数: 24

約数和(自身を含む): 39836736

約数和(自身を除く): 18539186

約数列:

[1, 2, 5, 10, 25, 50, 193, 386, 965, 1930, 2207, 4414, 4825, 9650, 11035, 22070, 55175, 110350, 425951, 851902, 2129755, 4259510, 10648775, 21297550]

約数ペア:

[(1, 21297550), (2, 10648775), (5, 4259510), (10, 2129755), (25, 851902), (50, 425951), (193, 110350), (386, 55175), (965, 22070), (1930, 11035), (2207, 9650), (4414, 4825)]