257628723

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{457}}^1\times {\mathrm{1553}}^1$

素因数の和:2035

約数の個数: 24

約数和(自身を含む): 378641424

約数和(自身を除く): 121012701

約数列:

[1, 3, 11, 33, 121, 363, 457, 1371, 1553, 4659, 5027, 15081, 17083, 51249, 55297, 165891, 187913, 563739, 709721, 2129163, 7806931, 23420793, 85876241, 257628723]

約数ペア:

[(1, 257628723), (3, 85876241), (11, 23420793), (33, 7806931), (121, 2129163), (363, 709721), (457, 563739), (1371, 187913), (1553, 165891), (4659, 55297), (5027, 51249), (15081, 17083)]