19904258

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{233}}^1\times {\mathrm{353}}^1$

素因数の和:610

約数の個数: 24

約数和(自身を含む): 33051564

約数和(自身を除く): 13147306

約数列:

[1, 2, 11, 22, 121, 233, 242, 353, 466, 706, 2563, 3883, 5126, 7766, 28193, 42713, 56386, 82249, 85426, 164498, 904739, 1809478, 9952129, 19904258]

約数ペア:

[(1, 19904258), (2, 9952129), (11, 1809478), (22, 904739), (121, 164498), (233, 85426), (242, 82249), (353, 56386), (466, 42713), (706, 28193), (2563, 7766), (3883, 5126)]