20892109

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2239}}^1$

素因数の和:2320

約数の個数: 16

約数和(自身を含む): 25231360

約数和(自身を除く): 4339251

約数列:

[1, 7, 31, 43, 217, 301, 1333, 2239, 9331, 15673, 69409, 96277, 485863, 673939, 2984587, 20892109]

約数ペア:

[(1, 20892109), (7, 2984587), (31, 673939), (43, 485863), (217, 96277), (301, 69409), (1333, 15673), (2239, 9331)]