81378423

素因数分解:

$3^2\times 7^1\times {\mathrm{337}}^1\times {\mathrm{3833}}^1$

素因数の和:4183

約数の個数: 24

約数和(自身を含む): 134772768

約数和(自身を除く): 53394345

約数列:

[1, 3, 7, 9, 21, 63, 337, 1011, 2359, 3033, 3833, 7077, 11499, 21231, 26831, 34497, 80493, 241479, 1291721, 3875163, 9042047, 11625489, 27126141, 81378423]

約数ペア:

[(1, 81378423), (3, 27126141), (7, 11625489), (9, 9042047), (21, 3875163), (63, 1291721), (337, 241479), (1011, 80493), (2359, 34497), (3033, 26831), (3833, 21231), (7077, 11499)]