20809236

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{247729}}^1$

素因数の和:247743

約数の個数: 24

約数和(自身を含む): 55491520

約数和(自身を除く): 34682284

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 247729, 495458, 743187, 990916, 1486374, 1734103, 2972748, 3468206, 5202309, 6936412, 10404618, 20809236]

約数ペア:

[(1, 20809236), (2, 10404618), (3, 6936412), (4, 5202309), (6, 3468206), (7, 2972748), (12, 1734103), (14, 1486374), (21, 990916), (28, 743187), (42, 495458), (84, 247729)]