18438693

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1$

素因数の和:206

約数の個数: 64

約数和(自身を含む): 33384960

約数和(自身を除く): 14946267

約数列:

[1, 3, 7, 13, 17, 21, 29, 39, 51, 87, 91, 119, 137, 203, 221, 273, 357, 377, 411, 493, 609, 663, 959, 1131, 1479, 1547, 1781, 2329, 2639, 2877, 3451, 3973, 4641, 5343, 6409, 6987, 7917, 10353, 11919, 12467, 16303, 19227, 27811, 30277, 37401, 44863, 48909, 51649, 67541, 83433, 90831, 134589, 154947, 202623, 211939, 361543, 472787, 635817, 878033, 1084629, 1418361, 2634099, 6146231, 18438693]

約数ペア:

[(1, 18438693), (3, 6146231), (7, 2634099), (13, 1418361), (17, 1084629), (21, 878033), (29, 635817), (39, 472787), (51, 361543), (87, 211939), (91, 202623), (119, 154947), (137, 134589), (203, 90831), (221, 83433), (273, 67541), (357, 51649), (377, 48909), (411, 44863), (493, 37401), (609, 30277), (663, 27811), (959, 19227), (1131, 16303), (1479, 12467), (1547, 11919), (1781, 10353), (2329, 7917), (2639, 6987), (2877, 6409), (3451, 5343), (3973, 4641)]