19503211

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{2003}}^1$

素因数の和:2130

約数の個数: 16

約数和(自身を含む): 24240384

約数和(自身を除く): 4737173

約数列:

[1, 7, 13, 91, 107, 749, 1391, 2003, 9737, 14021, 26039, 182273, 214321, 1500247, 2786173, 19503211]

約数ペア:

[(1, 19503211), (7, 2786173), (13, 1500247), (91, 214321), (107, 182273), (749, 26039), (1391, 14021), (2003, 9737)]