19903189444

素因数分解:

$2^2\times {\mathrm{2221}}^1\times {\mathrm{2240341}}^1$

素因数の和:2242566

約数の個数: 12

約数和(自身を含む): 34846279468

約数和(自身を除く): 14943090024

約数列:

[1, 2, 4, 2221, 4442, 8884, 2240341, 4480682, 8961364, 4975797361, 9951594722, 19903189444]

約数ペア:

[(1, 19903189444), (2, 9951594722), (4, 4975797361), (2221, 8961364), (4442, 4480682), (8884, 2240341)]