20730644

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{10957}}^1$

素因数の和:11015

約数の個数: 24

約数和(自身を含む): 40500768

約数和(自身を除く): 19770124

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 10957, 21914, 43828, 120527, 241054, 471151, 482108, 942302, 1884604, 5182661, 10365322, 20730644]

約数ペア:

[(1, 20730644), (2, 10365322), (4, 5182661), (11, 1884604), (22, 942302), (43, 482108), (44, 471151), (86, 241054), (172, 120527), (473, 43828), (946, 21914), (1892, 10957)]