257371647

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{90401}}^1$

素因数の和:90490

約数の個数: 16

約数和(自身を含む): 374625888

約数和(自身を除く): 117254241

約数列:

[1, 3, 13, 39, 73, 219, 949, 2847, 90401, 271203, 1175213, 3525639, 6599273, 19797819, 85790549, 257371647]

約数ペア:

[(1, 257371647), (3, 85790549), (13, 19797819), (39, 6599273), (73, 3525639), (219, 1175213), (949, 271203), (2847, 90401)]