1380521779

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{798451}}^1$

素因数の和:798490

約数の個数: 16

約数和(自身を含む): 1788532480

約数和(自身を除く): 408010701

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 798451, 5589157, 10379863, 15170569, 72659041, 106193983, 197217397, 1380521779]

約数ペア:

[(1, 1380521779), (7, 197217397), (13, 106193983), (19, 72659041), (91, 15170569), (133, 10379863), (247, 5589157), (1729, 798451)]