21494121

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{28319}}^1$

素因数の和:28356

約数の個数: 16

約数和(自身を含む): 32624640

約数和(自身を除く): 11130519

約数列:

[1, 3, 11, 23, 33, 69, 253, 759, 28319, 84957, 311509, 651337, 934527, 1954011, 7164707, 21494121]

約数ペア:

[(1, 21494121), (3, 7164707), (11, 1954011), (23, 934527), (33, 651337), (69, 311509), (253, 84957), (759, 28319)]