20179665

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1$

素因数の和:259

約数の個数: 64

約数和(自身を含む): 39813120

約数和(自身を除く): 19633455

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 99, 107, 127, 135, 165, 297, 321, 381, 495, 535, 635, 963, 1143, 1177, 1397, 1485, 1605, 1905, 2889, 3429, 3531, 4191, 4815, 5715, 5885, 6985, 10593, 12573, 13589, 14445, 17145, 17655, 20955, 31779, 37719, 40767, 52965, 62865, 67945, 122301, 149479, 158895, 188595, 203835, 366903, 448437, 611505, 747395, 1345311, 1834515, 2242185, 4035933, 6726555, 20179665]

約数ペア:

[(1, 20179665), (3, 6726555), (5, 4035933), (9, 2242185), (11, 1834515), (15, 1345311), (27, 747395), (33, 611505), (45, 448437), (55, 366903), (99, 203835), (107, 188595), (127, 158895), (135, 149479), (165, 122301), (297, 67945), (321, 62865), (381, 52965), (495, 40767), (535, 37719), (635, 31779), (963, 20955), (1143, 17655), (1177, 17145), (1397, 14445), (1485, 13589), (1605, 12573), (1905, 10593), (2889, 6985), (3429, 5885), (3531, 5715), (4191, 4815)]