20397366

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1493}}^1$

素因数の和:1538

約数の個数: 64

約数和(自身を含む): 51632640

約数和(自身を除く): 31235274

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 23, 27, 33, 46, 54, 66, 69, 99, 138, 198, 207, 253, 297, 414, 506, 594, 621, 759, 1242, 1493, 1518, 2277, 2986, 4479, 4554, 6831, 8958, 13437, 13662, 16423, 26874, 32846, 34339, 40311, 49269, 68678, 80622, 98538, 103017, 147807, 206034, 295614, 309051, 377729, 443421, 618102, 755458, 886842, 927153, 1133187, 1854306, 2266374, 3399561, 6799122, 10198683, 20397366]

約数ペア:

[(1, 20397366), (2, 10198683), (3, 6799122), (6, 3399561), (9, 2266374), (11, 1854306), (18, 1133187), (22, 927153), (23, 886842), (27, 755458), (33, 618102), (46, 443421), (54, 377729), (66, 309051), (69, 295614), (99, 206034), (138, 147807), (198, 103017), (207, 98538), (253, 80622), (297, 68678), (414, 49269), (506, 40311), (594, 34339), (621, 32846), (759, 26874), (1242, 16423), (1493, 13662), (1518, 13437), (2277, 8958), (2986, 6831), (4479, 4554)]