20848765

素因数分解:

$5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{1979}}^1$

素因数の和:2041

約数の個数: 24

約数和(自身を含む): 29795040

約数和(自身を除く): 8946275

約数列:

[1, 5, 7, 35, 43, 49, 215, 245, 301, 1505, 1979, 2107, 9895, 10535, 13853, 69265, 85097, 96971, 425485, 484855, 595679, 2978395, 4169753, 20848765]

約数ペア:

[(1, 20848765), (5, 4169753), (7, 2978395), (35, 595679), (43, 484855), (49, 425485), (215, 96971), (245, 85097), (301, 69265), (1505, 13853), (1979, 10535), (2107, 9895)]