28610739

素因数分解:

$3^4\times {\mathrm{421}}^1\times {\mathrm{839}}^1$

素因数の和:1272

約数の個数: 20

約数和(自身を含む): 42892080

約数和(自身を除く): 14281341

約数列:

[1, 3, 9, 27, 81, 421, 839, 1263, 2517, 3789, 7551, 11367, 22653, 34101, 67959, 353219, 1059657, 3178971, 9536913, 28610739]

約数ペア:

[(1, 28610739), (3, 9536913), (9, 3178971), (27, 1059657), (81, 353219), (421, 67959), (839, 34101), (1263, 22653), (2517, 11367), (3789, 7551)]