20181393

素因数分解:

$3^5\times {\mathrm{53}}^1\times {\mathrm{1567}}^1$

素因数の和:1635

約数の個数: 24

約数和(自身を含む): 30820608

約数和(自身を除く): 10639215

約数列:

[1, 3, 9, 27, 53, 81, 159, 243, 477, 1431, 1567, 4293, 4701, 12879, 14103, 42309, 83051, 126927, 249153, 380781, 747459, 2242377, 6727131, 20181393]

約数ペア:

[(1, 20181393), (3, 6727131), (9, 2242377), (27, 747459), (53, 380781), (81, 249153), (159, 126927), (243, 83051), (477, 42309), (1431, 14103), (1567, 12879), (4293, 4701)]