20421564

素因数分解:

$2^2\times 3^1\times {\mathrm{769}}^1\times {\mathrm{2213}}^1$

素因数の和:2989

約数の個数: 24

約数和(自身を含む): 47733840

約数和(自身を除く): 27312276

約数列:

[1, 2, 3, 4, 6, 12, 769, 1538, 2213, 2307, 3076, 4426, 4614, 6639, 8852, 9228, 13278, 26556, 1701797, 3403594, 5105391, 6807188, 10210782, 20421564]

約数ペア:

[(1, 20421564), (2, 10210782), (3, 6807188), (4, 5105391), (6, 3403594), (12, 1701797), (769, 26556), (1538, 13278), (2213, 9228), (2307, 8852), (3076, 6639), (4426, 4614)]