21064318

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{2341}}^1$

素因数の和:2763

約数の個数: 16

約数和(自身を含む): 34567920

約数和(自身を除く): 13503602

約数列:

[1, 2, 11, 22, 409, 818, 2341, 4499, 4682, 8998, 25751, 51502, 957469, 1914938, 10532159, 21064318]

約数ペア:

[(1, 21064318), (2, 10532159), (11, 1914938), (22, 957469), (409, 51502), (818, 25751), (2341, 8998), (4499, 4682)]