20898789

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{2179}}^1$

素因数の和:2344

約数の個数: 16

約数和(自身を含む): 29299200

約数和(自身を除く): 8400411

約数列:

[1, 3, 23, 69, 139, 417, 2179, 3197, 6537, 9591, 50117, 150351, 302881, 908643, 6966263, 20898789]

約数ペア:

[(1, 20898789), (3, 6966263), (23, 908643), (69, 302881), (139, 150351), (417, 50117), (2179, 9591), (3197, 6537)]