257834241

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{2087}}^1$

素因数の和:2190

約数の個数: 48

約数和(自身を含む): 445595904

約数和(自身を除く): 187761663

約数列:

[1, 3, 7, 9, 21, 37, 53, 63, 111, 159, 259, 333, 371, 477, 777, 1113, 1961, 2087, 2331, 3339, 5883, 6261, 13727, 14609, 17649, 18783, 41181, 43827, 77219, 110611, 123543, 131481, 231657, 331833, 540533, 694971, 774277, 995499, 1621599, 2322831, 4092607, 4864797, 6968493, 12277821, 28648249, 36833463, 85944747, 257834241]

約数ペア:

[(1, 257834241), (3, 85944747), (7, 36833463), (9, 28648249), (21, 12277821), (37, 6968493), (53, 4864797), (63, 4092607), (111, 2322831), (159, 1621599), (259, 995499), (333, 774277), (371, 694971), (477, 540533), (777, 331833), (1113, 231657), (1961, 131481), (2087, 123543), (2331, 110611), (3339, 77219), (5883, 43827), (6261, 41181), (13727, 18783), (14609, 17649)]