20639806

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{4861}}^1$

素因数の和:5067

約数の個数: 16

約数和(自身を含む): 33956208

約数和(自身を除く): 13316402

約数列:

[1, 2, 11, 22, 193, 386, 2123, 4246, 4861, 9722, 53471, 106942, 938173, 1876346, 10319903, 20639806]

約数ペア:

[(1, 20639806), (2, 10319903), (11, 1876346), (22, 938173), (193, 106942), (386, 53471), (2123, 9722), (4246, 4861)]