81605133

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{25117}}^1$

素因数の和:25161

約数の個数: 18

約数和(自身を含む): 124409454

約数和(自身を除く): 42804321

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 25117, 75351, 226053, 477223, 1431669, 4295007, 9067237, 27201711, 81605133]

約数ペア:

[(1, 81605133), (3, 27201711), (9, 9067237), (19, 4295007), (57, 1431669), (171, 477223), (361, 226053), (1083, 75351), (3249, 25117)]