209898669

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{547}}^1\times {\mathrm{3457}}^1$

素因数の和:4044

約数の個数: 16

約数和(自身を含む): 288037568

約数和(自身を除く): 78138899

約数列:

[1, 3, 37, 111, 547, 1641, 3457, 10371, 20239, 60717, 127909, 383727, 1890979, 5672937, 69966223, 209898669]

約数ペア:

[(1, 209898669), (3, 69966223), (37, 5672937), (111, 1890979), (547, 383727), (1641, 127909), (3457, 60717), (10371, 20239)]