18906669

素因数分解:

$3^3\times {\mathrm{17}}^2\times {\mathrm{2423}}^1$

素因数の和:2466

約数の個数: 24

約数和(自身を含む): 29766720

約数和(自身を除く): 10860051

約数列:

[1, 3, 9, 17, 27, 51, 153, 289, 459, 867, 2423, 2601, 7269, 7803, 21807, 41191, 65421, 123573, 370719, 700247, 1112157, 2100741, 6302223, 18906669]

約数ペア:

[(1, 18906669), (3, 6302223), (9, 2100741), (17, 1112157), (27, 700247), (51, 370719), (153, 123573), (289, 65421), (459, 41191), (867, 21807), (2423, 7803), (2601, 7269)]