247203411

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{905507}}^1$

素因数の和:905530

約数の個数: 16

約数和(自身を含む): 405667584

約数和(自身を除く): 158464173

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 905507, 2716521, 6338549, 11771591, 19015647, 35314773, 82401137, 247203411]

約数ペア:

[(1, 247203411), (3, 82401137), (7, 35314773), (13, 19015647), (21, 11771591), (39, 6338549), (91, 2716521), (273, 905507)]