20578023

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{641}}^1$

素因数の和:720

約数の個数: 32

約数和(自身を含む): 32356800

約数和(自身を除く): 11778777

約数列:

[1, 3, 9, 27, 29, 41, 87, 123, 261, 369, 641, 783, 1107, 1189, 1923, 3567, 5769, 10701, 17307, 18589, 26281, 32103, 55767, 78843, 167301, 236529, 501903, 709587, 762149, 2286447, 6859341, 20578023]

約数ペア:

[(1, 20578023), (3, 6859341), (9, 2286447), (27, 762149), (29, 709587), (41, 501903), (87, 236529), (123, 167301), (261, 78843), (369, 55767), (641, 32103), (783, 26281), (1107, 18589), (1189, 17307), (1923, 10701), (3567, 5769)]