81675243

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{331}}^1$

素因数の和:409

約数の個数: 64

約数和(自身を含む): 141299200

約数和(自身を除く): 59623957

約数列:

[1, 3, 9, 13, 19, 27, 37, 39, 57, 111, 117, 171, 247, 331, 333, 351, 481, 513, 703, 741, 993, 999, 1443, 2109, 2223, 2979, 4303, 4329, 6289, 6327, 6669, 8937, 9139, 12247, 12909, 12987, 18867, 18981, 27417, 36741, 38727, 56601, 81757, 82251, 110223, 116181, 159211, 169803, 232693, 245271, 246753, 330669, 477633, 698079, 735813, 1432899, 2094237, 2207439, 3025009, 4298697, 6282711, 9075027, 27225081, 81675243]

約数ペア:

[(1, 81675243), (3, 27225081), (9, 9075027), (13, 6282711), (19, 4298697), (27, 3025009), (37, 2207439), (39, 2094237), (57, 1432899), (111, 735813), (117, 698079), (171, 477633), (247, 330669), (331, 246753), (333, 245271), (351, 232693), (481, 169803), (513, 159211), (703, 116181), (741, 110223), (993, 82251), (999, 81757), (1443, 56601), (2109, 38727), (2223, 36741), (2979, 27417), (4303, 18981), (4329, 18867), (6289, 12987), (6327, 12909), (6669, 12247), (8937, 9139)]