21114335

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{5407}}^1$

素因数の和:5494

約数の個数: 16

約数和(自身を含む): 28035072

約数和(自身を除く): 6920737

約数列:

[1, 5, 11, 55, 71, 355, 781, 3905, 5407, 27035, 59477, 297385, 383897, 1919485, 4222867, 21114335]

約数ペア:

[(1, 21114335), (5, 4222867), (11, 1919485), (55, 383897), (71, 297385), (355, 59477), (781, 27035), (3905, 5407)]