3969968247

素因数分解:

$3^3\times 7^1\times {\mathrm{21005123}}^1$

素因数の和:21005139

約数の個数: 16

約数和(自身を含む): 6721639680

約数和(自身を除く): 2751671433

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 21005123, 63015369, 147035861, 189046107, 441107583, 567138321, 1323322749, 3969968247]

約数ペア:

[(1, 3969968247), (3, 1323322749), (7, 567138321), (9, 441107583), (21, 189046107), (27, 147035861), (63, 63015369), (189, 21005123)]