28251531

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1$

素因数の和:261

約数の個数: 64

約数和(自身を含む): 53084160

約数和(自身を除く): 24832629

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 107, 127, 189, 231, 297, 321, 381, 693, 749, 889, 963, 1143, 1177, 1397, 2079, 2247, 2667, 2889, 3429, 3531, 4191, 6741, 8001, 8239, 9779, 10593, 12573, 13589, 20223, 24003, 24717, 29337, 31779, 37719, 40767, 74151, 88011, 95123, 122301, 149479, 222453, 264033, 285369, 366903, 448437, 856107, 1046353, 1345311, 2568321, 3139059, 4035933, 9417177, 28251531]

約数ペア:

[(1, 28251531), (3, 9417177), (7, 4035933), (9, 3139059), (11, 2568321), (21, 1345311), (27, 1046353), (33, 856107), (63, 448437), (77, 366903), (99, 285369), (107, 264033), (127, 222453), (189, 149479), (231, 122301), (297, 95123), (321, 88011), (381, 74151), (693, 40767), (749, 37719), (889, 31779), (963, 29337), (1143, 24717), (1177, 24003), (1397, 20223), (2079, 13589), (2247, 12573), (2667, 10593), (2889, 9779), (3429, 8239), (3531, 8001), (4191, 6741)]