209905613

素因数分解:

${\mathrm{17}}^2\times {\mathrm{23}}^2\times {\mathrm{1373}}^1$

素因数の和:1453

約数の個数: 18

約数和(自身を含む): 233265354

約数和(自身を除く): 23359741

約数列:

[1, 17, 23, 289, 391, 529, 1373, 6647, 8993, 23341, 31579, 152881, 396797, 536843, 726317, 9126331, 12347389, 209905613]

約数ペア:

[(1, 209905613), (17, 12347389), (23, 9126331), (289, 726317), (391, 536843), (529, 396797), (1373, 152881), (6647, 31579), (8993, 23341)]