20712531

素因数分解:

$3^1\times 7^1\times {\mathrm{883}}^1\times {\mathrm{1117}}^1$

素因数の和:2010

約数の個数: 16

約数和(自身を含む): 31625984

約数和(自身を除く): 10913453

約数列:

[1, 3, 7, 21, 883, 1117, 2649, 3351, 6181, 7819, 18543, 23457, 986311, 2958933, 6904177, 20712531]

約数ペア:

[(1, 20712531), (3, 6904177), (7, 2958933), (21, 986311), (883, 23457), (1117, 18543), (2649, 7819), (3351, 6181)]