19828490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{180259}}^1$

素因数の和:180277

約数の個数: 16

約数和(自身を含む): 38936160

約数和(自身を除く): 19107670

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 180259, 360518, 901295, 1802590, 1982849, 3965698, 9914245, 19828490]

約数ペア:

[(1, 19828490), (2, 9914245), (5, 3965698), (10, 1982849), (11, 1802590), (22, 901295), (55, 360518), (110, 180259)]