20974317

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{76829}}^1$

素因数の和:76852

約数の個数: 16

約数和(自身を含む): 34419840

約数和(自身を除く): 13445523

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 76829, 230487, 537803, 998777, 1613409, 2996331, 6991439, 20974317]

約数ペア:

[(1, 20974317), (3, 6991439), (7, 2996331), (13, 1613409), (21, 998777), (39, 537803), (91, 230487), (273, 76829)]