21309508

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{3697}}^1$

素因数の和:3843

約数の個数: 24

約数和(自身を含む): 41003424

約数和(自身を除く): 19693916

約数列:

[1, 2, 4, 11, 22, 44, 131, 262, 524, 1441, 2882, 3697, 5764, 7394, 14788, 40667, 81334, 162668, 484307, 968614, 1937228, 5327377, 10654754, 21309508]

約数ペア:

[(1, 21309508), (2, 10654754), (4, 5327377), (11, 1937228), (22, 968614), (44, 484307), (131, 162668), (262, 81334), (524, 40667), (1441, 14788), (2882, 7394), (3697, 5764)]