12643666

素因数分解:

$2^1\times 7^4\times {\mathrm{2633}}^1$

素因数の和:2663

約数の個数: 20

約数和(自身を含む): 22133502

約数和(自身を除く): 9489836

約数列:

[1, 2, 7, 14, 49, 98, 343, 686, 2401, 2633, 4802, 5266, 18431, 36862, 129017, 258034, 903119, 1806238, 6321833, 12643666]

約数ペア:

[(1, 12643666), (2, 6321833), (7, 1806238), (14, 903119), (49, 258034), (98, 129017), (343, 36862), (686, 18431), (2401, 5266), (2633, 4802)]