388820663

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^2\times {\mathrm{2731}}^1$

素因数の和:2835

約数の個数: 24

約数和(自身を含む): 496480896

約数和(自身を除く): 107660233

約数列:

[1, 7, 11, 43, 77, 301, 473, 1849, 2731, 3311, 12943, 19117, 20339, 30041, 117433, 142373, 210287, 822031, 1291763, 5049619, 9042341, 35347333, 55545809, 388820663]

約数ペア:

[(1, 388820663), (7, 55545809), (11, 35347333), (43, 9042341), (77, 5049619), (301, 1291763), (473, 822031), (1849, 210287), (2731, 142373), (3311, 117433), (12943, 30041), (19117, 20339)]