199961489

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{30949}}^1$

素因数の和:31040

約数の個数: 16

約数和(自身を含む): 249580800

約数和(自身を除く): 49619311

約数列:

[1, 7, 13, 71, 91, 497, 923, 6461, 30949, 216643, 402337, 2197379, 2816359, 15381653, 28565927, 199961489]

約数ペア:

[(1, 199961489), (7, 28565927), (13, 15381653), (71, 2816359), (91, 2197379), (497, 402337), (923, 216643), (6461, 30949)]