20566521

素因数分解:

$3^3\times {\mathrm{67}}^1\times {\mathrm{11369}}^1$

素因数の和:11445

約数の個数: 16

約数和(自身を含む): 30926400

約数和(自身を除く): 10359879

約数列:

[1, 3, 9, 27, 67, 201, 603, 1809, 11369, 34107, 102321, 306963, 761723, 2285169, 6855507, 20566521]

約数ペア:

[(1, 20566521), (3, 6855507), (9, 2285169), (27, 761723), (67, 306963), (201, 102321), (603, 34107), (1809, 11369)]