66991743

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{521}}^1$

素因数の和:704

約数の個数: 48

約数和(自身を含む): 120085056

約数和(自身を除く): 53093313

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 157, 273, 471, 521, 819, 1099, 1413, 1563, 2041, 3297, 3647, 4689, 6123, 6773, 9891, 10941, 14287, 18369, 20319, 32823, 42861, 47411, 60957, 81797, 128583, 142233, 245391, 426699, 572579, 736173, 1063361, 1717737, 3190083, 5153211, 7443527, 9570249, 22330581, 66991743]

約数ペア:

[(1, 66991743), (3, 22330581), (7, 9570249), (9, 7443527), (13, 5153211), (21, 3190083), (39, 1717737), (63, 1063361), (91, 736173), (117, 572579), (157, 426699), (273, 245391), (471, 142233), (521, 128583), (819, 81797), (1099, 60957), (1413, 47411), (1563, 42861), (2041, 32823), (3297, 20319), (3647, 18369), (4689, 14287), (6123, 10941), (6773, 9891)]