20778777607

素因数分解:

$7^1\times {\mathrm{1361}}^1\times {\mathrm{1399}}^1\times {\mathrm{1559}}^1$

素因数の和:4326

約数の個数: 16

約数和(自身を含む): 23796864000

約数和(自身を除く): 3018086393

約数列:

[1, 7, 1361, 1399, 1559, 9527, 9793, 10913, 1904039, 2121799, 2181041, 13328273, 14852593, 15267287, 2968396801, 20778777607]

約数ペア:

[(1, 20778777607), (7, 2968396801), (1361, 15267287), (1399, 14852593), (1559, 13328273), (9527, 2181041), (9793, 2121799), (10913, 1904039)]