20906823

素因数分解:

$3^1\times 7^1\times {\mathrm{977}}^1\times {\mathrm{1019}}^1$

素因数の和:2006

約数の個数: 16

約数和(自身を含む): 31921920

約数和(自身を除く): 11015097

約数列:

[1, 3, 7, 21, 977, 1019, 2931, 3057, 6839, 7133, 20517, 21399, 995563, 2986689, 6968941, 20906823]

約数ペア:

[(1, 20906823), (3, 6968941), (7, 2986689), (21, 995563), (977, 21399), (1019, 20517), (2931, 7133), (3057, 6839)]