20396889

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{4597}}^1$

素因数の和:4649

約数の個数: 24

約数和(自身を含む): 32277960

約数和(自身を除く): 11881071

約数列:

[1, 3, 9, 17, 29, 51, 87, 153, 261, 493, 1479, 4437, 4597, 13791, 41373, 78149, 133313, 234447, 399939, 703341, 1199817, 2266321, 6798963, 20396889]

約数ペア:

[(1, 20396889), (3, 6798963), (9, 2266321), (17, 1199817), (29, 703341), (51, 399939), (87, 234447), (153, 133313), (261, 78149), (493, 41373), (1479, 13791), (4437, 4597)]