2640357

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{881}}^1$

素因数の和:930

約数の個数: 20

約数和(自身を含む): 4055436

約数和(自身を除く): 1415079

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 881, 999, 2643, 2997, 7929, 23787, 32597, 71361, 97791, 293373, 880119, 2640357]

約数ペア:

[(1, 2640357), (3, 880119), (9, 293373), (27, 97791), (37, 71361), (81, 32597), (111, 23787), (333, 7929), (881, 2997), (999, 2643)]