20811636

素因数分解:

$2^2\times 3^2\times {\mathrm{139}}^1\times {\mathrm{4159}}^1$

素因数の和:4308

約数の個数: 36

約数和(自身を含む): 52998400

約数和(自身を除く): 32186764

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 139, 278, 417, 556, 834, 1251, 1668, 2502, 4159, 5004, 8318, 12477, 16636, 24954, 37431, 49908, 74862, 149724, 578101, 1156202, 1734303, 2312404, 3468606, 5202909, 6937212, 10405818, 20811636]

約数ペア:

[(1, 20811636), (2, 10405818), (3, 6937212), (4, 5202909), (6, 3468606), (9, 2312404), (12, 1734303), (18, 1156202), (36, 578101), (139, 149724), (278, 74862), (417, 49908), (556, 37431), (834, 24954), (1251, 16636), (1668, 12477), (2502, 8318), (4159, 5004)]