20839973

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{3041}}^1$

素因数の和:3148

約数の個数: 16

約数和(自身を含む): 26282880

約数和(自身を除く): 5442907

約数列:

[1, 7, 11, 77, 89, 623, 979, 3041, 6853, 21287, 33451, 234157, 270649, 1894543, 2977139, 20839973]

約数ペア:

[(1, 20839973), (7, 2977139), (11, 1894543), (77, 270649), (89, 234157), (623, 33451), (979, 21287), (3041, 6853)]