18341721

素因数分解:

$3^4\times {\mathrm{127}}^1\times {\mathrm{1783}}^1$

素因数の和:1922

約数の個数: 20

約数和(自身を含む): 27630592

約数和(自身を除く): 9288871

約数列:

[1, 3, 9, 27, 81, 127, 381, 1143, 1783, 3429, 5349, 10287, 16047, 48141, 144423, 226441, 679323, 2037969, 6113907, 18341721]

約数ペア:

[(1, 18341721), (3, 6113907), (9, 2037969), (27, 679323), (81, 226441), (127, 144423), (381, 48141), (1143, 16047), (1783, 10287), (3429, 5349)]