21364681

素因数分解:

${\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{293}}^1$

素因数の和:456

約数の個数: 16

約数和(自身を含む): 23708160

約数和(自身を除く): 2343479

約数列:

[1, 13, 71, 79, 293, 923, 1027, 3809, 5609, 20803, 23147, 72917, 270439, 300911, 1643437, 21364681]

約数ペア:

[(1, 21364681), (13, 1643437), (71, 300911), (79, 270439), (293, 72917), (923, 23147), (1027, 20803), (3809, 5609)]