19282791

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 29196288

約数和(自身を除く): 9913497

約数列:

[1, 3, 11, 33, 43, 107, 127, 129, 321, 381, 473, 1177, 1397, 1419, 3531, 4191, 4601, 5461, 13589, 13803, 16383, 40767, 50611, 60071, 149479, 151833, 180213, 448437, 584327, 1752981, 6427597, 19282791]

約数ペア:

[(1, 19282791), (3, 6427597), (11, 1752981), (33, 584327), (43, 448437), (107, 180213), (127, 151833), (129, 149479), (321, 60071), (381, 50611), (473, 40767), (1177, 16383), (1397, 13803), (1419, 13589), (3531, 5461), (4191, 4601)]