3981393

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:243

約数の個数: 40

約数和(自身を含む): 6776000

約数和(自身を除く): 2794607

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 81, 117, 171, 199, 247, 351, 513, 597, 741, 1053, 1539, 1791, 2223, 2587, 3781, 5373, 6669, 7761, 11343, 16119, 20007, 23283, 34029, 49153, 69849, 102087, 147459, 209547, 306261, 442377, 1327131, 3981393]

約数ペア:

[(1, 3981393), (3, 1327131), (9, 442377), (13, 306261), (19, 209547), (27, 147459), (39, 102087), (57, 69849), (81, 49153), (117, 34029), (171, 23283), (199, 20007), (247, 16119), (351, 11343), (513, 7761), (597, 6669), (741, 5373), (1053, 3781), (1539, 2587), (1791, 2223)]