19175859

素因数分解:

$3^5\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:158

約数の個数: 48

約数和(自身を含む): 31030272

約数和(自身を除く): 11854413

約数列:

[1, 3, 9, 23, 27, 47, 69, 73, 81, 141, 207, 219, 243, 423, 621, 657, 1081, 1269, 1679, 1863, 1971, 3243, 3431, 3807, 5037, 5589, 5913, 9729, 10293, 11421, 15111, 17739, 29187, 30879, 45333, 78913, 87561, 92637, 135999, 236739, 262683, 277911, 407997, 710217, 833733, 2130651, 6391953, 19175859]

約数ペア:

[(1, 19175859), (3, 6391953), (9, 2130651), (23, 833733), (27, 710217), (47, 407997), (69, 277911), (73, 262683), (81, 236739), (141, 135999), (207, 92637), (219, 87561), (243, 78913), (423, 45333), (621, 30879), (657, 29187), (1081, 17739), (1269, 15111), (1679, 11421), (1863, 10293), (1971, 9729), (3243, 5913), (3431, 5589), (3807, 5037)]