28190781

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{28219}}^1$

素因数の和:28265

約数の個数: 16

約数和(自身を含む): 42894400

約数和(自身を除く): 14703619

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 28219, 84657, 253971, 761913, 1044103, 3132309, 9396927, 28190781]

約数ペア:

[(1, 28190781), (3, 9396927), (9, 3132309), (27, 1044103), (37, 761913), (111, 253971), (333, 84657), (999, 28219)]