20486576

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2707}}^1$

素因数の和:2769

約数の個数: 40

約数和(自身を含む): 44324544

約数和(自身を除く): 23837968

約数列:

[1, 2, 4, 8, 11, 16, 22, 43, 44, 86, 88, 172, 176, 344, 473, 688, 946, 1892, 2707, 3784, 5414, 7568, 10828, 21656, 29777, 43312, 59554, 116401, 119108, 232802, 238216, 465604, 476432, 931208, 1280411, 1862416, 2560822, 5121644, 10243288, 20486576]

約数ペア:

[(1, 20486576), (2, 10243288), (4, 5121644), (8, 2560822), (11, 1862416), (16, 1280411), (22, 931208), (43, 476432), (44, 465604), (86, 238216), (88, 232802), (172, 119108), (176, 116401), (344, 59554), (473, 43312), (688, 29777), (946, 21656), (1892, 10828), (2707, 7568), (3784, 5414)]