20565489

素因数分解:

$3^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{5471}}^1$

素因数の和:5660

約数の個数: 16

約数和(自身を含む): 31518720

約数和(自身を除く): 10953231

約数列:

[1, 3, 7, 21, 179, 537, 1253, 3759, 5471, 16413, 38297, 114891, 979309, 2937927, 6855163, 20565489]

約数ペア:

[(1, 20565489), (3, 6855163), (7, 2937927), (21, 979309), (179, 114891), (537, 38297), (1253, 16413), (3759, 5471)]