257478

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{3301}}^1$

素因数の和:3319

約数の個数: 16

約数和(自身を含む): 554736

約数和(自身を除く): 297258

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 3301, 6602, 9903, 19806, 42913, 85826, 128739, 257478]

約数ペア:

[(1, 257478), (2, 128739), (3, 85826), (6, 42913), (13, 19806), (26, 9903), (39, 6602), (78, 3301)]