2161431

素因数分解:

$3^3\times {\mathrm{17}}^2\times {\mathrm{277}}^1$

素因数の和:320

約数の個数: 24

約数和(自身を含む): 3413840

約数和(自身を除く): 1252409

約数列:

[1, 3, 9, 17, 27, 51, 153, 277, 289, 459, 831, 867, 2493, 2601, 4709, 7479, 7803, 14127, 42381, 80053, 127143, 240159, 720477, 2161431]

約数ペア:

[(1, 2161431), (3, 720477), (9, 240159), (17, 127143), (27, 80053), (51, 42381), (153, 14127), (277, 7803), (289, 7479), (459, 4709), (831, 2601), (867, 2493)]