18757288

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{4957}}^1$

素因数の和:5017

約数の個数: 32

約数和(自身を含む): 39267360

約数和(自身を除く): 20510072

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 86, 88, 172, 344, 473, 946, 1892, 3784, 4957, 9914, 19828, 39656, 54527, 109054, 213151, 218108, 426302, 436216, 852604, 1705208, 2344661, 4689322, 9378644, 18757288]

約数ペア:

[(1, 18757288), (2, 9378644), (4, 4689322), (8, 2344661), (11, 1705208), (22, 852604), (43, 436216), (44, 426302), (86, 218108), (88, 213151), (172, 109054), (344, 54527), (473, 39656), (946, 19828), (1892, 9914), (3784, 4957)]