2891781

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{1879}}^1$

素因数の和:1910

約数の個数: 20

約数和(自身を含む): 4549600

約数和(自身を除く): 1657819

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 1879, 5637, 16911, 35701, 50733, 107103, 152199, 321309, 963927, 2891781]

約数ペア:

[(1, 2891781), (3, 963927), (9, 321309), (19, 152199), (27, 107103), (57, 50733), (81, 35701), (171, 16911), (513, 5637), (1539, 1879)]