19018629

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1$

素因数の和:290

約数の個数: 48

約数和(自身を含む): 33196800

約数和(自身を除く): 14178171

約数列:

[1, 3, 7, 9, 21, 37, 41, 63, 111, 123, 199, 259, 287, 333, 369, 597, 777, 861, 1393, 1517, 1791, 2331, 2583, 4179, 4551, 7363, 8159, 10619, 12537, 13653, 22089, 24477, 31857, 51541, 57113, 66267, 73431, 95571, 154623, 171339, 301883, 463869, 514017, 905649, 2113181, 2716947, 6339543, 19018629]

約数ペア:

[(1, 19018629), (3, 6339543), (7, 2716947), (9, 2113181), (21, 905649), (37, 514017), (41, 463869), (63, 301883), (111, 171339), (123, 154623), (199, 95571), (259, 73431), (287, 66267), (333, 57113), (369, 51541), (597, 31857), (777, 24477), (861, 22089), (1393, 13653), (1517, 12537), (1791, 10619), (2331, 8159), (2583, 7363), (4179, 4551)]