66863979

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:249

約数の個数: 72

約数和(自身を含む): 123243120

約数和(自身を除く): 56379141

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 107, 109, 117, 147, 273, 321, 327, 441, 637, 749, 763, 819, 963, 981, 1391, 1417, 1911, 2247, 2289, 4173, 4251, 5243, 5341, 5733, 6741, 6867, 9737, 9919, 11663, 12519, 12753, 15729, 16023, 29211, 29757, 34989, 47187, 48069, 68159, 69433, 81641, 87633, 89271, 104967, 151619, 204477, 208299, 244923, 454857, 571487, 613431, 624897, 734769, 1061333, 1364571, 1714461, 3183999, 5143383, 7429331, 9551997, 22287993, 66863979]

約数ペア:

[(1, 66863979), (3, 22287993), (7, 9551997), (9, 7429331), (13, 5143383), (21, 3183999), (39, 1714461), (49, 1364571), (63, 1061333), (91, 734769), (107, 624897), (109, 613431), (117, 571487), (147, 454857), (273, 244923), (321, 208299), (327, 204477), (441, 151619), (637, 104967), (749, 89271), (763, 87633), (819, 81641), (963, 69433), (981, 68159), (1391, 48069), (1417, 47187), (1911, 34989), (2247, 29757), (2289, 29211), (4173, 16023), (4251, 15729), (5243, 12753), (5341, 12519), (5733, 11663), (6741, 9919), (6867, 9737)]