20017216

素因数分解:

$2^6\times {\mathrm{257}}^1\times {\mathrm{1217}}^1$

素因数の和:1486

約数の個数: 28

約数和(自身を含む): 39908988

約数和(自身を除く): 19891772

約数列:

[1, 2, 4, 8, 16, 32, 64, 257, 514, 1028, 1217, 2056, 2434, 4112, 4868, 8224, 9736, 16448, 19472, 38944, 77888, 312769, 625538, 1251076, 2502152, 5004304, 10008608, 20017216]

約数ペア:

[(1, 20017216), (2, 10008608), (4, 5004304), (8, 2502152), (16, 1251076), (32, 625538), (64, 312769), (257, 77888), (514, 38944), (1028, 19472), (1217, 16448), (2056, 9736), (2434, 8224), (4112, 4868)]