12878866

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{919}}^1$

素因数の和:959

約数の個数: 48

約数和(自身を含む): 26429760

約数和(自身を除く): 13550894

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 49, 77, 91, 98, 143, 154, 182, 286, 539, 637, 919, 1001, 1078, 1274, 1838, 2002, 6433, 7007, 10109, 11947, 12866, 14014, 20218, 23894, 45031, 70763, 83629, 90062, 131417, 141526, 167258, 262834, 495341, 585403, 919919, 990682, 1170806, 1839838, 6439433, 12878866]

約数ペア:

[(1, 12878866), (2, 6439433), (7, 1839838), (11, 1170806), (13, 990682), (14, 919919), (22, 585403), (26, 495341), (49, 262834), (77, 167258), (91, 141526), (98, 131417), (143, 90062), (154, 83629), (182, 70763), (286, 45031), (539, 23894), (637, 20218), (919, 14014), (1001, 12866), (1078, 11947), (1274, 10109), (1838, 7007), (2002, 6433)]