20855889

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{271}}^1\times {\mathrm{503}}^1$

素因数の和:797

約数の個数: 24

約数和(自身を含む): 32078592

約数和(自身を除く): 11222703

約数列:

[1, 3, 9, 17, 51, 153, 271, 503, 813, 1509, 2439, 4527, 4607, 8551, 13821, 25653, 41463, 76959, 136313, 408939, 1226817, 2317321, 6951963, 20855889]

約数ペア:

[(1, 20855889), (3, 6951963), (9, 2317321), (17, 1226817), (51, 408939), (153, 136313), (271, 76959), (503, 41463), (813, 25653), (1509, 13821), (2439, 8551), (4527, 4607)]