20827431

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{691}}^1$

素因数の和:911

約数の個数: 24

約数和(自身を含む): 32061744

約数和(自身を除く): 11234313

約数列:

[1, 3, 9, 17, 51, 153, 197, 591, 691, 1773, 2073, 3349, 6219, 10047, 11747, 30141, 35241, 105723, 136127, 408381, 1225143, 2314159, 6942477, 20827431]

約数ペア:

[(1, 20827431), (3, 6942477), (9, 2314159), (17, 1225143), (51, 408381), (153, 136127), (197, 105723), (591, 35241), (691, 30141), (1773, 11747), (2073, 10047), (3349, 6219)]