128857419

素因数分解:

$3^3\times {\mathrm{97}}^1\times {\mathrm{49201}}^1$

素因数の和:49307

約数の個数: 16

約数和(自身を含む): 192871840

約数和(自身を除く): 64014421

約数列:

[1, 3, 9, 27, 97, 291, 873, 2619, 49201, 147603, 442809, 1328427, 4772497, 14317491, 42952473, 128857419]

約数ペア:

[(1, 128857419), (3, 42952473), (9, 14317491), (27, 4772497), (97, 1328427), (291, 442809), (873, 147603), (2619, 49201)]