81216687

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{593}}^1\times {\mathrm{643}}^1$

素因数の和:1310

約数の個数: 16

約数和(自身を含む): 110170368

約数和(自身を除く): 28953681

約数列:

[1, 3, 71, 213, 593, 643, 1779, 1929, 42103, 45653, 126309, 136959, 381299, 1143897, 27072229, 81216687]

約数ペア:

[(1, 81216687), (3, 27072229), (71, 1143897), (213, 381299), (593, 136959), (643, 126309), (1779, 45653), (1929, 42103)]