397993939

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{7643}}^1$

素因数の和:7866

約数の個数: 16

約数和(自身を含む): 468179712

約数和(自身を除く): 70185773

約数列:

[1, 7, 43, 173, 301, 1211, 7439, 7643, 52073, 53501, 328649, 1322239, 2300543, 9255673, 56856277, 397993939]

約数ペア:

[(1, 397993939), (7, 56856277), (43, 9255673), (173, 2300543), (301, 1322239), (1211, 328649), (7439, 53501), (7643, 52073)]