278826121

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{9661}}^1$

素因数の和:9725

約数の個数: 24

約数和(自身を含む): 352469760

約数和(自身を除く): 73643639

約数列:

[1, 7, 19, 31, 49, 133, 217, 589, 931, 1519, 4123, 9661, 28861, 67627, 183559, 299491, 473389, 1284913, 2096437, 5690329, 8994391, 14675059, 39832303, 278826121]

約数ペア:

[(1, 278826121), (7, 39832303), (19, 14675059), (31, 8994391), (49, 5690329), (133, 2096437), (217, 1284913), (589, 473389), (931, 299491), (1519, 183559), (4123, 67627), (9661, 28861)]