20886978

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{497309}}^1$

素因数の和:497321

約数の個数: 16

約数和(自身を含む): 47741760

約数和(自身を除く): 26854782

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 497309, 994618, 1491927, 2983854, 3481163, 6962326, 10443489, 20886978]

約数ペア:

[(1, 20886978), (2, 10443489), (3, 6962326), (6, 3481163), (7, 2983854), (14, 1491927), (21, 994618), (42, 497309)]