19222540

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{13537}}^1$

素因数の和:13617

約数の個数: 24

約数和(自身を含む): 40938912

約数和(自身を除く): 21716372

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 13537, 27074, 54148, 67685, 135370, 270740, 961127, 1922254, 3844508, 4805635, 9611270, 19222540]

約数ペア:

[(1, 19222540), (2, 9611270), (4, 4805635), (5, 3844508), (10, 1922254), (20, 961127), (71, 270740), (142, 135370), (284, 67685), (355, 54148), (710, 27074), (1420, 13537)]