28427903

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{1217}}^1$

素因数の和:1342

約数の個数: 16

約数和(自身を含む): 33675264

約数和(自身を除く): 5247361

約数列:

[1, 7, 47, 71, 329, 497, 1217, 3337, 8519, 23359, 57199, 86407, 400393, 604849, 4061129, 28427903]

約数ペア:

[(1, 28427903), (7, 4061129), (47, 604849), (71, 400393), (329, 86407), (497, 57199), (1217, 23359), (3337, 8519)]