20318188

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{10739}}^1$

素因数の和:10797

約数の個数: 24

約数和(自身を含む): 39695040

約数和(自身を除く): 19376852

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 10739, 21478, 42956, 118129, 236258, 461777, 472516, 923554, 1847108, 5079547, 10159094, 20318188]

約数ペア:

[(1, 20318188), (2, 10159094), (4, 5079547), (11, 1847108), (22, 923554), (43, 472516), (44, 461777), (86, 236258), (172, 118129), (473, 42956), (946, 21478), (1892, 10739)]