20177787

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{14341}}^1$

素因数の和:14418

約数の個数: 16

約数和(自身を含む): 31208192

約数和(自身を除く): 11030405

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 14341, 43023, 100387, 301161, 960847, 2882541, 6725929, 20177787]

約数ペア:

[(1, 20177787), (3, 6725929), (7, 2882541), (21, 960847), (67, 301161), (201, 100387), (469, 43023), (1407, 14341)]