20518173

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{1117}}^1$

素因数の和:1293

約数の個数: 24

約数和(自身を含む): 32149208

約数和(自身を除く): 11631035

約数列:

[1, 3, 9, 13, 39, 117, 157, 471, 1117, 1413, 2041, 3351, 6123, 10053, 14521, 18369, 43563, 130689, 175369, 526107, 1578321, 2279797, 6839391, 20518173]

約数ペア:

[(1, 20518173), (3, 6839391), (9, 2279797), (13, 1578321), (39, 526107), (117, 175369), (157, 130689), (471, 43563), (1117, 18369), (1413, 14521), (2041, 10053), (3351, 6123)]