20508741

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{347}}^1$

素因数の和:566

約数の個数: 32

約数和(自身を含む): 33408000

約数和(自身を除く): 12899259

約数列:

[1, 3, 9, 11, 27, 33, 99, 199, 297, 347, 597, 1041, 1791, 2189, 3123, 3817, 5373, 6567, 9369, 11451, 19701, 34353, 59103, 69053, 103059, 207159, 621477, 759583, 1864431, 2278749, 6836247, 20508741]

約数ペア:

[(1, 20508741), (3, 6836247), (9, 2278749), (11, 1864431), (27, 759583), (33, 621477), (99, 207159), (199, 103059), (297, 69053), (347, 59103), (597, 34353), (1041, 19701), (1791, 11451), (2189, 9369), (3123, 6567), (3817, 5373)]