21318033

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{28087}}^1$

素因数の和:28124

約数の個数: 16

約数和(自身を含む): 32357376

約数和(自身を除く): 11039343

約数列:

[1, 3, 11, 23, 33, 69, 253, 759, 28087, 84261, 308957, 646001, 926871, 1938003, 7106011, 21318033]

約数ペア:

[(1, 21318033), (3, 7106011), (11, 1938003), (23, 926871), (33, 646001), (69, 308957), (253, 84261), (759, 28087)]