12125781

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{7879}}^1$

素因数の和:7910

約数の個数: 20

約数和(自身を含む): 19069600

約数和(自身を除く): 6943819

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 7879, 23637, 70911, 149701, 212733, 449103, 638199, 1347309, 4041927, 12125781]

約数ペア:

[(1, 12125781), (3, 4041927), (9, 1347309), (19, 638199), (27, 449103), (57, 212733), (81, 149701), (171, 70911), (513, 23637), (1539, 7879)]