89415909

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{12721}}^1$

素因数の和:12809

約数の個数: 24

約数和(自身を含む): 142893504

約数和(自身を除く): 53477595

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 639, 781, 2343, 7029, 12721, 38163, 114489, 139931, 419793, 903191, 1259379, 2709573, 8128719, 9935101, 29805303, 89415909]

約数ペア:

[(1, 89415909), (3, 29805303), (9, 9935101), (11, 8128719), (33, 2709573), (71, 1259379), (99, 903191), (213, 419793), (639, 139931), (781, 114489), (2343, 38163), (7029, 12721)]