28517489

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{919}}^1$

素因数の和:981

約数の個数: 32

約数和(自身を含む): 39567360

約数和(自身を除く): 11049871

約数列:

[1, 7, 11, 13, 31, 77, 91, 143, 217, 341, 403, 919, 1001, 2387, 2821, 4433, 6433, 10109, 11947, 28489, 31031, 70763, 83629, 131417, 199423, 313379, 370357, 919919, 2193653, 2592499, 4073927, 28517489]

約数ペア:

[(1, 28517489), (7, 4073927), (11, 2592499), (13, 2193653), (31, 919919), (77, 370357), (91, 313379), (143, 199423), (217, 131417), (341, 83629), (403, 70763), (919, 31031), (1001, 28489), (2387, 11947), (2821, 10109), (4433, 6433)]