2199393

素因数分解:

$3^6\times 7^1\times {\mathrm{431}}^1$

素因数の和:456

約数の個数: 28

約数和(自身を含む): 3777408

約数和(自身を除く): 1578015

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 431, 567, 729, 1293, 1701, 3017, 3879, 5103, 9051, 11637, 27153, 34911, 81459, 104733, 244377, 314199, 733131, 2199393]

約数ペア:

[(1, 2199393), (3, 733131), (7, 314199), (9, 244377), (21, 104733), (27, 81459), (63, 34911), (81, 27153), (189, 11637), (243, 9051), (431, 5103), (567, 3879), (729, 3017), (1293, 1701)]