2801721

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{199}}^1$

素因数の和:253

約数の個数: 24

約数和(自身を含む): 4267200

約数和(自身を除く): 1465479

約数列:

[1, 3, 13, 19, 39, 57, 199, 247, 361, 597, 741, 1083, 2587, 3781, 4693, 7761, 11343, 14079, 49153, 71839, 147459, 215517, 933907, 2801721]

約数ペア:

[(1, 2801721), (3, 933907), (13, 215517), (19, 147459), (39, 71839), (57, 49153), (199, 14079), (247, 11343), (361, 7761), (597, 4693), (741, 3781), (1083, 2587)]