20992906

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{15643}}^1$

素因数の和:15717

約数の個数: 16

約数和(自身を含む): 34917408

約数和(自身を除く): 13924502

約数列:

[1, 2, 11, 22, 61, 122, 671, 1342, 15643, 31286, 172073, 344146, 954223, 1908446, 10496453, 20992906]

約数ペア:

[(1, 20992906), (2, 10496453), (11, 1908446), (22, 954223), (61, 344146), (122, 172073), (671, 31286), (1342, 15643)]