209809685

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{51361}}^1$

素因数の和:51428

約数の個数: 16

約数和(自身を含む): 271191360

約数和(自身を除く): 61381675

約数列:

[1, 5, 19, 43, 95, 215, 817, 4085, 51361, 256805, 975859, 2208523, 4879295, 11042615, 41961937, 209809685]

約数ペア:

[(1, 209809685), (5, 41961937), (19, 11042615), (43, 4879295), (95, 2208523), (215, 975859), (817, 256805), (4085, 51361)]