18500812

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{61}}^2\times {\mathrm{113}}^1$

素因数の和:250

約数の個数: 36

約数和(自身を含む): 36226008

約数和(自身を除く): 17725196

約数列:

[1, 2, 4, 11, 22, 44, 61, 113, 122, 226, 244, 452, 671, 1243, 1342, 2486, 2684, 3721, 4972, 6893, 7442, 13786, 14884, 27572, 40931, 75823, 81862, 151646, 163724, 303292, 420473, 840946, 1681892, 4625203, 9250406, 18500812]

約数ペア:

[(1, 18500812), (2, 9250406), (4, 4625203), (11, 1681892), (22, 840946), (44, 420473), (61, 303292), (113, 163724), (122, 151646), (226, 81862), (244, 75823), (452, 40931), (671, 27572), (1243, 14884), (1342, 13786), (2486, 7442), (2684, 6893), (3721, 4972)]