20559885

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{80627}}^1$

素因数の和:80652

約数の個数: 16

約数和(自身を含む): 34831296

約数和(自身を除く): 14271411

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 80627, 241881, 403135, 1209405, 1370659, 4111977, 6853295, 20559885]

約数ペア:

[(1, 20559885), (3, 6853295), (5, 4111977), (15, 1370659), (17, 1209405), (51, 403135), (85, 241881), (255, 80627)]