12728989

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3253}}^1$

素因数の和:3316

約数の個数: 16

約数和(自身を含む): 16035712

約数和(自身を除く): 3306723

約数列:

[1, 7, 13, 43, 91, 301, 559, 3253, 3913, 22771, 42289, 139879, 296023, 979153, 1818427, 12728989]

約数ペア:

[(1, 12728989), (7, 1818427), (13, 979153), (43, 296023), (91, 139879), (301, 42289), (559, 22771), (3253, 3913)]