81744957

素因数分解:

$3^6\times 7^1\times {\mathrm{83}}^1\times {\mathrm{193}}^1$

素因数の和:301

約数の個数: 56

約数和(自身を含む): 142492224

約数和(自身を除く): 60747267

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 83, 189, 193, 243, 249, 567, 579, 581, 729, 747, 1351, 1701, 1737, 1743, 2241, 4053, 5103, 5211, 5229, 6723, 12159, 15633, 15687, 16019, 20169, 36477, 46899, 47061, 48057, 60507, 109431, 112133, 140697, 141183, 144171, 328293, 336399, 423549, 432513, 984879, 1009197, 1297539, 3027591, 3892617, 9082773, 11677851, 27248319, 81744957]

約数ペア:

[(1, 81744957), (3, 27248319), (7, 11677851), (9, 9082773), (21, 3892617), (27, 3027591), (63, 1297539), (81, 1009197), (83, 984879), (189, 432513), (193, 423549), (243, 336399), (249, 328293), (567, 144171), (579, 141183), (581, 140697), (729, 112133), (747, 109431), (1351, 60507), (1701, 48057), (1737, 47061), (1743, 46899), (2241, 36477), (4053, 20169), (5103, 16019), (5211, 15687), (5229, 15633), (6723, 12159)]