18791613

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{467}}^1$

素因数の和:753

約数の個数: 24

約数和(自身を含む): 28911168

約数和(自身を除く): 10119555

約数列:

[1, 3, 9, 17, 51, 153, 263, 467, 789, 1401, 2367, 4203, 4471, 7939, 13413, 23817, 40239, 71451, 122821, 368463, 1105389, 2087957, 6263871, 18791613]

約数ペア:

[(1, 18791613), (3, 6263871), (9, 2087957), (17, 1105389), (51, 368463), (153, 122821), (263, 71451), (467, 40239), (789, 23817), (1401, 13413), (2367, 7939), (4203, 4471)]