209901419

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1\times {\mathrm{199}}^1$

素因数の和:459

約数の個数: 32

約数和(自身を含む): 265036800

約数和(自身を除く): 55135381

約数列:

[1, 7, 13, 67, 91, 173, 199, 469, 871, 1211, 1393, 2249, 2587, 6097, 11591, 13333, 15743, 18109, 34427, 81137, 93331, 150683, 173329, 240989, 447551, 1054781, 1213303, 2306609, 3132857, 16146263, 29985917, 209901419]

約数ペア:

[(1, 209901419), (7, 29985917), (13, 16146263), (67, 3132857), (91, 2306609), (173, 1213303), (199, 1054781), (469, 447551), (871, 240989), (1211, 173329), (1393, 150683), (2249, 93331), (2587, 81137), (6097, 34427), (11591, 18109), (13333, 15743)]