18207371

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{283}}^1$

素因数の和:411

約数の個数: 24

約数和(自身を含む): 23116464

約数和(自身を除く): 4909093

約数列:

[1, 7, 13, 49, 91, 101, 283, 637, 707, 1313, 1981, 3679, 4949, 9191, 13867, 25753, 28583, 64337, 180271, 200081, 371579, 1400567, 2601053, 18207371]

約数ペア:

[(1, 18207371), (7, 2601053), (13, 1400567), (49, 371579), (91, 200081), (101, 180271), (283, 64337), (637, 28583), (707, 25753), (1313, 13867), (1981, 9191), (3679, 4949)]