18926193

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{281}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 29941632

約数和(自身を除く): 11015439

約数列:

[1, 3, 11, 13, 33, 39, 143, 157, 281, 429, 471, 843, 1727, 2041, 3091, 3653, 5181, 6123, 9273, 10959, 22451, 40183, 44117, 67353, 120549, 132351, 485287, 573521, 1455861, 1720563, 6308731, 18926193]

約数ペア:

[(1, 18926193), (3, 6308731), (11, 1720563), (13, 1455861), (33, 573521), (39, 485287), (143, 132351), (157, 120549), (281, 67353), (429, 44117), (471, 40183), (843, 22451), (1727, 10959), (2041, 9273), (3091, 6123), (3653, 5181)]