91107981

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{8387}}^1$

素因数の和:8481

約数の個数: 24

約数和(自身を含む): 141321024

約数和(自身を除く): 50213043

約数列:

[1, 3, 9, 17, 51, 71, 153, 213, 639, 1207, 3621, 8387, 10863, 25161, 75483, 142579, 427737, 595477, 1283211, 1786431, 5359293, 10123109, 30369327, 91107981]

約数ペア:

[(1, 91107981), (3, 30369327), (9, 10123109), (17, 5359293), (51, 1786431), (71, 1283211), (153, 595477), (213, 427737), (639, 142579), (1207, 75483), (3621, 25161), (8387, 10863)]