1646001

素因数分解:

$3^4\times 7^1\times {\mathrm{2903}}^1$

素因数の和:2922

約数の個数: 20

約数和(自身を含む): 2811072

約数和(自身を除く): 1165071

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 2903, 8709, 20321, 26127, 60963, 78381, 182889, 235143, 548667, 1646001]

約数ペア:

[(1, 1646001), (3, 548667), (7, 235143), (9, 182889), (21, 78381), (27, 60963), (63, 26127), (81, 20321), (189, 8709), (567, 2903)]