81287493

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{1051}}^1$

素因数の和:1217

約数の個数: 32

約数和(自身を含む): 129269760

約数和(自身を除く): 47982267

約数列:

[1, 3, 7, 21, 29, 87, 127, 203, 381, 609, 889, 1051, 2667, 3153, 3683, 7357, 11049, 22071, 25781, 30479, 77343, 91437, 133477, 213353, 400431, 640059, 934339, 2803017, 3870833, 11612499, 27095831, 81287493]

約数ペア:

[(1, 81287493), (3, 27095831), (7, 11612499), (21, 3870833), (29, 2803017), (87, 934339), (127, 640059), (203, 400431), (381, 213353), (609, 133477), (889, 91437), (1051, 77343), (2667, 30479), (3153, 25781), (3683, 22071), (7357, 11049)]