12987249

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1$

素因数の和:349

約数の個数: 32

約数和(自身を含む): 20072448

約数和(自身を除く): 7085199

約数列:

[1, 3, 11, 23, 33, 69, 71, 213, 241, 253, 723, 759, 781, 1633, 2343, 2651, 4899, 5543, 7953, 16629, 17111, 17963, 51333, 53889, 60973, 182919, 188221, 393553, 564663, 1180659, 4329083, 12987249]

約数ペア:

[(1, 12987249), (3, 4329083), (11, 1180659), (23, 564663), (33, 393553), (69, 188221), (71, 182919), (213, 60973), (241, 53889), (253, 51333), (723, 17963), (759, 17111), (781, 16629), (1633, 7953), (2343, 5543), (2651, 4899)]