18916011

素因数分解:

$3^4\times {\mathrm{347}}^1\times {\mathrm{673}}^1$

素因数の和:1032

約数の個数: 20

約数和(自身を含む): 28380792

約数和(自身を除く): 9464781

約数列:

[1, 3, 9, 27, 81, 347, 673, 1041, 2019, 3123, 6057, 9369, 18171, 28107, 54513, 233531, 700593, 2101779, 6305337, 18916011]

約数ペア:

[(1, 18916011), (3, 6305337), (9, 2101779), (27, 700593), (81, 233531), (347, 54513), (673, 28107), (1041, 18171), (2019, 9369), (3123, 6057)]