9978717

素因数分解:

$3^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{739}}^1$

素因数の和:1392

約数の個数: 16

約数和(自身を含む): 15249920

約数和(自身を除く): 5271203

約数列:

[1, 3, 7, 21, 643, 739, 1929, 2217, 4501, 5173, 13503, 15519, 475177, 1425531, 3326239, 9978717]

約数ペア:

[(1, 9978717), (3, 3326239), (7, 1425531), (21, 475177), (643, 15519), (739, 13503), (1929, 5173), (2217, 4501)]