299972169

素因数分解:

$3^2\times 7^2\times {\mathrm{680209}}^1$

素因数の和:680229

約数の個数: 18

約数和(自身を含む): 504035610

約数和(自身を除く): 204063441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 680209, 2040627, 4761463, 6121881, 14284389, 33330241, 42853167, 99990723, 299972169]

約数ペア:

[(1, 299972169), (3, 99990723), (7, 42853167), (9, 33330241), (21, 14284389), (49, 6121881), (63, 4761463), (147, 2040627), (441, 680209)]