2019096891

素因数分解:

$3^2\times 7^2\times {\mathrm{4578451}}^1$

素因数の和:4578471

約数の個数: 18

約数和(自身を含む): 3392632932

約数和(自身を除く): 1373536041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 4578451, 13735353, 32049157, 41206059, 96147471, 224344099, 288442413, 673032297, 2019096891]

約数ペア:

[(1, 2019096891), (3, 673032297), (7, 288442413), (9, 224344099), (21, 96147471), (49, 41206059), (63, 32049157), (147, 13735353), (441, 4578451)]