81222315

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{311}}^1\times {\mathrm{757}}^1$

素因数の和:1099

約数の個数: 32

約数和(自身を含む): 136221696

約数和(自身を除く): 54999381

約数列:

[1, 3, 5, 15, 23, 69, 115, 311, 345, 757, 933, 1555, 2271, 3785, 4665, 7153, 11355, 17411, 21459, 35765, 52233, 87055, 107295, 235427, 261165, 706281, 1177135, 3531405, 5414821, 16244463, 27074105, 81222315]

約数ペア:

[(1, 81222315), (3, 27074105), (5, 16244463), (15, 5414821), (23, 3531405), (69, 1177135), (115, 706281), (311, 261165), (345, 235427), (757, 107295), (933, 87055), (1555, 52233), (2271, 35765), (3785, 21459), (4665, 17411), (7153, 11355)]