18722049

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^2$

素因数の和:317

約数の個数: 24

約数和(自身を含む): 28023840

約数和(自身を除く): 9301791

約数列:

[1, 3, 17, 19, 51, 57, 139, 323, 417, 969, 2363, 2641, 7089, 7923, 19321, 44897, 57963, 134691, 328457, 367099, 985371, 1101297, 6240683, 18722049]

約数ペア:

[(1, 18722049), (3, 6240683), (17, 1101297), (19, 985371), (51, 367099), (57, 328457), (139, 134691), (323, 57963), (417, 44897), (969, 19321), (2363, 7923), (2641, 7089)]