12921219

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{277}}^1$

素因数の和:427

約数の個数: 24

約数和(自身を含む): 19255392

約数和(自身を除く): 6334173

約数列:

[1, 3, 9, 71, 73, 213, 219, 277, 639, 657, 831, 2493, 5183, 15549, 19667, 20221, 46647, 59001, 60663, 177003, 181989, 1435691, 4307073, 12921219]

約数ペア:

[(1, 12921219), (3, 4307073), (9, 1435691), (71, 181989), (73, 177003), (213, 60663), (219, 59001), (277, 46647), (639, 20221), (657, 19667), (831, 15549), (2493, 5183)]