18518157

素因数分解:

$3^2\times 7^1\times {\mathrm{193}}^1\times {\mathrm{1523}}^1$

素因数の和:1729

約数の個数: 24

約数和(自身を含む): 30748224

約数和(自身を除く): 12230067

約数列:

[1, 3, 7, 9, 21, 63, 193, 579, 1351, 1523, 1737, 4053, 4569, 10661, 12159, 13707, 31983, 95949, 293939, 881817, 2057573, 2645451, 6172719, 18518157]

約数ペア:

[(1, 18518157), (3, 6172719), (7, 2645451), (9, 2057573), (21, 881817), (63, 293939), (193, 95949), (579, 31983), (1351, 13707), (1523, 12159), (1737, 10661), (4053, 4569)]