2491281

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{199}}^1$

素因数の和:325

約数の個数: 24

約数和(自身を含む): 3931200

約数和(自身を除く): 1439919

約数列:

[1, 3, 9, 13, 39, 107, 117, 199, 321, 597, 963, 1391, 1791, 2587, 4173, 7761, 12519, 21293, 23283, 63879, 191637, 276809, 830427, 2491281]

約数ペア:

[(1, 2491281), (3, 830427), (9, 276809), (13, 191637), (39, 63879), (107, 23283), (117, 21293), (199, 12519), (321, 7761), (597, 4173), (963, 2587), (1391, 1791)]