51489459

素因数分解:

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

素因数の和:289

約数の個数: 48

約数和(自身を含む): 90048000

約数和(自身を除く): 38558541

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 111, 189, 199, 259, 333, 597, 777, 999, 1369, 1393, 1791, 2331, 4107, 4179, 5373, 6993, 7363, 9583, 12321, 12537, 22089, 28749, 36963, 37611, 51541, 66267, 86247, 154623, 198801, 258741, 272431, 463869, 817293, 1391607, 1907017, 2451879, 5721051, 7355637, 17163153, 51489459]

約数ペア:

[(1, 51489459), (3, 17163153), (7, 7355637), (9, 5721051), (21, 2451879), (27, 1907017), (37, 1391607), (63, 817293), (111, 463869), (189, 272431), (199, 258741), (259, 198801), (333, 154623), (597, 86247), (777, 66267), (999, 51541), (1369, 37611), (1393, 36963), (1791, 28749), (2331, 22089), (4107, 12537), (4179, 12321), (5373, 9583), (6993, 7363)]