20593431

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{419}}^1$

素因数の和:595

約数の個数: 24

約数和(自身を含む): 30750720

約数和(自身を除く): 10157289

約数列:

[1, 3, 9, 43, 127, 129, 381, 387, 419, 1143, 1257, 3771, 5461, 16383, 18017, 49149, 53213, 54051, 159639, 162153, 478917, 2288159, 6864477, 20593431]

約数ペア:

[(1, 20593431), (3, 6864477), (9, 2288159), (43, 478917), (127, 162153), (129, 159639), (381, 54051), (387, 53213), (419, 49149), (1143, 18017), (1257, 16383), (3771, 5461)]