199777721

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{4003}}^1$

素因数の和:4376

約数の個数: 16

約数和(自身を含む): 235435200

約数和(自身を除く): 35657479

約数列:

[1, 11, 13, 143, 349, 3839, 4003, 4537, 44033, 49907, 52039, 572429, 1397047, 15367517, 18161611, 199777721]

約数ペア:

[(1, 199777721), (11, 18161611), (13, 15367517), (143, 1397047), (349, 572429), (3839, 52039), (4003, 49907), (4537, 44033)]