20702264

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{5471}}^1$

素因数の和:5531

約数の個数: 32

約数和(自身を含む): 43338240

約数和(自身を除く): 22635976

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 86, 88, 172, 344, 473, 946, 1892, 3784, 5471, 10942, 21884, 43768, 60181, 120362, 235253, 240724, 470506, 481448, 941012, 1882024, 2587783, 5175566, 10351132, 20702264]

約数ペア:

[(1, 20702264), (2, 10351132), (4, 5175566), (8, 2587783), (11, 1882024), (22, 941012), (43, 481448), (44, 470506), (86, 240724), (88, 235253), (172, 120362), (344, 60181), (473, 43768), (946, 21884), (1892, 10942), (3784, 5471)]