257251393

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{17117}}^1$

素因数の和:17256

約数の個数: 16

約数和(自身を含む): 312232320

約数和(自身を除く): 54980927

約数列:

[1, 7, 19, 113, 133, 791, 2147, 15029, 17117, 119819, 325223, 1934221, 2276561, 13539547, 36750199, 257251393]

約数ペア:

[(1, 257251393), (7, 36750199), (19, 13539547), (113, 2276561), (133, 1934221), (791, 325223), (2147, 119819), (15029, 17117)]