19784644

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{10457}}^1$

素因数の和:10515

約数の個数: 24

約数和(自身を含む): 38652768

約数和(自身を除く): 18868124

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 10457, 20914, 41828, 115027, 230054, 449651, 460108, 899302, 1798604, 4946161, 9892322, 19784644]

約数ペア:

[(1, 19784644), (2, 9892322), (4, 4946161), (11, 1798604), (22, 899302), (43, 460108), (44, 449651), (86, 230054), (172, 115027), (473, 41828), (946, 20914), (1892, 10457)]