20367809

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{139}}^1\times {\mathrm{173}}^1$

素因数の和:341

約数の個数: 24

約数和(自身を含む): 25919040

約数和(自身を除く): 5551231

約数列:

[1, 7, 11, 77, 121, 139, 173, 847, 973, 1211, 1529, 1903, 10703, 13321, 16819, 20933, 24047, 117733, 146531, 168329, 264517, 1851619, 2909687, 20367809]

約数ペア:

[(1, 20367809), (7, 2909687), (11, 1851619), (77, 264517), (121, 168329), (139, 146531), (173, 117733), (847, 24047), (973, 20933), (1211, 16819), (1529, 13321), (1903, 10703)]