18669969

素因数分解:

$3^2\times {\mathrm{73}}^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1$

素因数の和:417

約数の個数: 24

約数和(自身を含む): 27663272

約数和(自身を除く): 8993303

約数列:

[1, 3, 9, 73, 157, 181, 219, 471, 543, 657, 1413, 1629, 11461, 13213, 28417, 34383, 39639, 85251, 103149, 118917, 255753, 2074441, 6223323, 18669969]

約数ペア:

[(1, 18669969), (3, 6223323), (9, 2074441), (73, 255753), (157, 118917), (181, 103149), (219, 85251), (471, 39639), (543, 34383), (657, 28417), (1413, 13213), (1629, 11461)]