257831487

素因数分解:

$3^2\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{3187}}^1$

素因数の和:3383

約数の個数: 24

約数和(自身を含む): 380455920

約数和(自身を除く): 122624433

約数列:

[1, 3, 9, 89, 101, 267, 303, 801, 909, 3187, 8989, 9561, 26967, 28683, 80901, 283643, 321887, 850929, 965661, 2552787, 2896983, 28647943, 85943829, 257831487]

約数ペア:

[(1, 257831487), (3, 85943829), (9, 28647943), (89, 2896983), (101, 2552787), (267, 965661), (303, 850929), (801, 321887), (909, 283643), (3187, 80901), (8989, 28683), (9561, 26967)]