123886161

素因数分解:

$3^2\times 7^2\times {\mathrm{280921}}^1$

素因数の和:280941

約数の個数: 18

約数和(自身を含む): 208163202

約数和(自身を除く): 84277041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 280921, 842763, 1966447, 2528289, 5899341, 13765129, 17698023, 41295387, 123886161]

約数ペア:

[(1, 123886161), (3, 41295387), (7, 17698023), (9, 13765129), (21, 5899341), (49, 2528289), (63, 1966447), (147, 842763), (441, 280921)]