20839977

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{45403}}^1$

素因数の和:45429

約数の個数: 16

約数和(自身を含む): 32690880

約数和(自身を除く): 11850903

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 45403, 136209, 408627, 771851, 1225881, 2315553, 6946659, 20839977]

約数ペア:

[(1, 20839977), (3, 6946659), (9, 2315553), (17, 1225881), (27, 771851), (51, 408627), (153, 136209), (459, 45403)]