81907803

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 131040000

約数和(自身を除く): 49132197

約数列:

[1, 3, 9, 19, 29, 57, 83, 87, 171, 199, 249, 261, 551, 597, 747, 1577, 1653, 1791, 2407, 3781, 4731, 4959, 5771, 7221, 11343, 14193, 16517, 17313, 21663, 34029, 45733, 49551, 51939, 109649, 137199, 148653, 313823, 328947, 411597, 478993, 941469, 986841, 1436979, 2824407, 4310937, 9100867, 27302601, 81907803]

約数ペア:

[(1, 81907803), (3, 27302601), (9, 9100867), (19, 4310937), (29, 2824407), (57, 1436979), (83, 986841), (87, 941469), (171, 478993), (199, 411597), (249, 328947), (261, 313823), (551, 148653), (597, 137199), (747, 109649), (1577, 51939), (1653, 49551), (1791, 45733), (2407, 34029), (3781, 21663), (4731, 17313), (4959, 16517), (5771, 14193), (7221, 11343)]