19668716

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{661}}^1$

素因数の和:881

約数の個数: 24

約数和(自身を含む): 35477904

約数和(自身を除く): 15809188

約数列:

[1, 2, 4, 43, 86, 172, 173, 346, 661, 692, 1322, 2644, 7439, 14878, 28423, 29756, 56846, 113692, 114353, 228706, 457412, 4917179, 9834358, 19668716]

約数ペア:

[(1, 19668716), (2, 9834358), (4, 4917179), (43, 457412), (86, 228706), (172, 114353), (173, 113692), (346, 56846), (661, 29756), (692, 28423), (1322, 14878), (2644, 7439)]