20004201

素因数分解:

$3^2\times 7^2\times {\mathrm{45361}}^1$

素因数の和:45381

約数の個数: 18

約数和(自身を含む): 33613242

約数和(自身を除く): 13609041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 45361, 136083, 317527, 408249, 952581, 2222689, 2857743, 6668067, 20004201]

約数ペア:

[(1, 20004201), (3, 6668067), (7, 2857743), (9, 2222689), (21, 952581), (49, 408249), (63, 317527), (147, 136083), (441, 45361)]