20619016

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{5449}}^1$

素因数の和:5509

約数の個数: 32

約数和(自身を含む): 43164000

約数和(自身を除く): 22544984

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 86, 88, 172, 344, 473, 946, 1892, 3784, 5449, 10898, 21796, 43592, 59939, 119878, 234307, 239756, 468614, 479512, 937228, 1874456, 2577377, 5154754, 10309508, 20619016]

約数ペア:

[(1, 20619016), (2, 10309508), (4, 5154754), (8, 2577377), (11, 1874456), (22, 937228), (43, 479512), (44, 468614), (86, 239756), (88, 234307), (172, 119878), (344, 59939), (473, 43592), (946, 21796), (1892, 10898), (3784, 5449)]