18131939

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{1021}}^1$

素因数の和:1130

約数の個数: 16

約数和(自身を含む): 21584640

約数和(自身を除く): 3452701

約数列:

[1, 7, 43, 59, 301, 413, 1021, 2537, 7147, 17759, 43903, 60239, 307321, 421673, 2590277, 18131939]

約数ペア:

[(1, 18131939), (7, 2590277), (43, 421673), (59, 307321), (301, 60239), (413, 43903), (1021, 17759), (2537, 7147)]