20663721

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3463}}^1$

素因数の和:3502

約数の個数: 32

約数和(自身を含む): 34917120

約数和(自身を除く): 14253399

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 117, 153, 221, 351, 459, 663, 1989, 3463, 5967, 10389, 31167, 45019, 58871, 93501, 135057, 176613, 405171, 529839, 765323, 1215513, 1589517, 2295969, 6887907, 20663721]

約数ペア:

[(1, 20663721), (3, 6887907), (9, 2295969), (13, 1589517), (17, 1215513), (27, 765323), (39, 529839), (51, 405171), (117, 176613), (153, 135057), (221, 93501), (351, 58871), (459, 45019), (663, 31167), (1989, 10389), (3463, 5967)]