20823201

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{3209}}^1$

素因数の和:3325

約数の個数: 24

約数和(自身を含む): 34719360

約数和(自身を除く): 13896159

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 2163, 3209, 6489, 9627, 22463, 28881, 67389, 202167, 330527, 991581, 2313689, 2974743, 6941067, 20823201]

約数ペア:

[(1, 20823201), (3, 6941067), (7, 2974743), (9, 2313689), (21, 991581), (63, 330527), (103, 202167), (309, 67389), (721, 28881), (927, 22463), (2163, 9627), (3209, 6489)]