201991237

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{547}}^1\times {\mathrm{743}}^1$

素因数の和:1368

約数の個数: 16

約数和(自身を含む): 234842112

約数和(自身を除く): 32850875

約数列:

[1, 7, 71, 497, 547, 743, 3829, 5201, 38837, 52753, 271859, 369271, 406421, 2844947, 28855891, 201991237]

約数ペア:

[(1, 201991237), (7, 28855891), (71, 2844947), (497, 406421), (547, 369271), (743, 271859), (3829, 52753), (5201, 38837)]