17647551

素因数分解:

$3^4\times {\mathrm{223}}^1\times {\mathrm{977}}^1$

素因数の和:1212

約数の個数: 20

約数和(自身を含む): 26507712

約数和(自身を除く): 8860161

約数列:

[1, 3, 9, 27, 81, 223, 669, 977, 2007, 2931, 6021, 8793, 18063, 26379, 79137, 217871, 653613, 1960839, 5882517, 17647551]

約数ペア:

[(1, 17647551), (3, 5882517), (9, 1960839), (27, 653613), (81, 217871), (223, 79137), (669, 26379), (977, 18063), (2007, 8793), (2931, 6021)]