13916721

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2683}}^1$

素因数の和:2725

約数の個数: 32

約数和(自身を含む): 24048640

約数和(自身を除く): 10131919

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 2683, 5187, 8049, 18781, 34879, 50977, 56343, 104637, 152931, 244153, 356839, 662701, 732459, 1070517, 1988103, 4638907, 13916721]

約数ペア:

[(1, 13916721), (3, 4638907), (7, 1988103), (13, 1070517), (19, 732459), (21, 662701), (39, 356839), (57, 244153), (91, 152931), (133, 104637), (247, 56343), (273, 50977), (399, 34879), (741, 18781), (1729, 8049), (2683, 5187)]