18385917

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 27869184

約数和(自身を除く): 9483267

約数列:

[1, 3, 11, 33, 41, 107, 123, 127, 321, 381, 451, 1177, 1353, 1397, 3531, 4191, 4387, 5207, 13161, 13589, 15621, 40767, 48257, 57277, 144771, 149479, 171831, 448437, 557149, 1671447, 6128639, 18385917]

約数ペア:

[(1, 18385917), (3, 6128639), (11, 1671447), (33, 557149), (41, 448437), (107, 171831), (123, 149479), (127, 144771), (321, 57277), (381, 48257), (451, 40767), (1177, 15621), (1353, 13589), (1397, 13161), (3531, 5207), (4191, 4387)]