20854449

素因数分解:

$3^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1433}}^1$

素因数の和:1467

約数の個数: 48

約数和(自身を含む): 39234240

約数和(自身を除く): 18379791

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 49, 63, 77, 99, 147, 189, 231, 297, 441, 539, 693, 1323, 1433, 1617, 2079, 4299, 4851, 10031, 12897, 14553, 15763, 30093, 38691, 47289, 70217, 90279, 110341, 141867, 210651, 270837, 331023, 425601, 631953, 772387, 993069, 1895859, 2317161, 2979207, 6951483, 20854449]

約数ペア:

[(1, 20854449), (3, 6951483), (7, 2979207), (9, 2317161), (11, 1895859), (21, 993069), (27, 772387), (33, 631953), (49, 425601), (63, 331023), (77, 270837), (99, 210651), (147, 141867), (189, 110341), (231, 90279), (297, 70217), (441, 47289), (539, 38691), (693, 30093), (1323, 15763), (1433, 14553), (1617, 12897), (2079, 10031), (4299, 4851)]