18713617

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^3\times {\mathrm{293}}^1$

素因数の和:357

約数の個数: 16

約数和(自身を含む): 21485520

約数和(自身を除く): 2771903

約数列:

[1, 13, 17, 221, 289, 293, 3757, 3809, 4913, 4981, 63869, 64753, 84677, 1100801, 1439509, 18713617]

約数ペア:

[(1, 18713617), (13, 1439509), (17, 1100801), (221, 84677), (289, 64753), (293, 63869), (3757, 4981), (3809, 4913)]