31495737

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2683}}^1$

素因数の和:2749

約数の個数: 32

約数和(自身を含む): 52907008

約数和(自身を除く): 21411271

約数列:

[1, 3, 7, 13, 21, 39, 43, 91, 129, 273, 301, 559, 903, 1677, 2683, 3913, 8049, 11739, 18781, 34879, 56343, 104637, 115369, 244153, 346107, 732459, 807583, 1499797, 2422749, 4499391, 10498579, 31495737]

約数ペア:

[(1, 31495737), (3, 10498579), (7, 4499391), (13, 2422749), (21, 1499797), (39, 807583), (43, 732459), (91, 346107), (129, 244153), (273, 115369), (301, 104637), (559, 56343), (903, 34879), (1677, 18781), (2683, 11739), (3913, 8049)]