208128333

素因数分解:

$3^1\times 7^2\times {\mathrm{197}}^1\times {\mathrm{7187}}^1$

素因数の和:7401

約数の個数: 24

約数和(自身を含む): 324495072

約数和(自身を除く): 116366739

約数列:

[1, 3, 7, 21, 49, 147, 197, 591, 1379, 4137, 7187, 9653, 21561, 28959, 50309, 150927, 352163, 1056489, 1415839, 4247517, 9910873, 29732619, 69376111, 208128333]

約数ペア:

[(1, 208128333), (3, 69376111), (7, 29732619), (21, 9910873), (49, 4247517), (147, 1415839), (197, 1056489), (591, 352163), (1379, 150927), (4137, 50309), (7187, 28959), (9653, 21561)]