137438511

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{1777}}^1$

素因数の和:1943

約数の個数: 32

約数和(自身を含む): 218480640

約数和(自身を除く): 81042129

約数列:

[1, 3, 7, 21, 29, 87, 127, 203, 381, 609, 889, 1777, 2667, 3683, 5331, 11049, 12439, 25781, 37317, 51533, 77343, 154599, 225679, 360731, 677037, 1082193, 1579753, 4739259, 6544691, 19634073, 45812837, 137438511]

約数ペア:

[(1, 137438511), (3, 45812837), (7, 19634073), (21, 6544691), (29, 4739259), (87, 1579753), (127, 1082193), (203, 677037), (381, 360731), (609, 225679), (889, 154599), (1777, 77343), (2667, 51533), (3683, 37317), (5331, 25781), (11049, 12439)]