12740007

素因数分解:

$3^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{2417}}^1$

素因数の和:2678

約数の個数: 16

約数和(自身を含む): 19498752

約数和(自身を除く): 6758745

約数列:

[1, 3, 7, 21, 251, 753, 1757, 2417, 5271, 7251, 16919, 50757, 606667, 1820001, 4246669, 12740007]

約数ペア:

[(1, 12740007), (3, 4246669), (7, 1820001), (21, 606667), (251, 50757), (753, 16919), (1757, 7251), (2417, 5271)]