20730556

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67307}}^1$

素因数の和:67329

約数の個数: 24

約数和(自身を含む): 45230976

約数和(自身を除く): 24500420

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 67307, 134614, 269228, 471149, 740377, 942298, 1480754, 1884596, 2961508, 5182639, 10365278, 20730556]

約数ペア:

[(1, 20730556), (2, 10365278), (4, 5182639), (7, 2961508), (11, 1884596), (14, 1480754), (22, 942298), (28, 740377), (44, 471149), (77, 269228), (154, 134614), (308, 67307)]