206891181

素因数分解:

$3^2\times 7^2\times {\mathrm{469141}}^1$

素因数の和:469161

約数の個数: 18

約数和(自身を含む): 347634222

約数和(自身を除く): 140743041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 469141, 1407423, 3283987, 4222269, 9851961, 22987909, 29555883, 68963727, 206891181]

約数ペア:

[(1, 206891181), (3, 68963727), (7, 29555883), (9, 22987909), (21, 9851961), (49, 4222269), (63, 3283987), (147, 1407423), (441, 469141)]