18891249

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{691}}^1\times {\mathrm{701}}^1$

素因数の和:1408

約数の個数: 16

約数和(自身を含む): 27203904

約数和(自身を除く): 8312655

約数列:

[1, 3, 13, 39, 691, 701, 2073, 2103, 8983, 9113, 26949, 27339, 484391, 1453173, 6297083, 18891249]

約数ペア:

[(1, 18891249), (3, 6297083), (13, 1453173), (39, 484391), (691, 27339), (701, 26949), (2073, 9113), (2103, 8983)]