21081033

素因数分解:

$3^3\times {\mathrm{107}}^1\times {\mathrm{7297}}^1$

素因数の和:7413

約数の個数: 16

約数和(自身を含む): 31527360

約数和(自身を除く): 10446327

約数列:

[1, 3, 9, 27, 107, 321, 963, 2889, 7297, 21891, 65673, 197019, 780779, 2342337, 7027011, 21081033]

約数ペア:

[(1, 21081033), (3, 7027011), (9, 2342337), (27, 780779), (107, 197019), (321, 65673), (963, 21891), (2889, 7297)]