2405781

素因数分解:

$3^4\times 7^1\times {\mathrm{4243}}^1$

素因数の和:4262

約数の個数: 20

約数和(自身を含む): 4108192

約数和(自身を除く): 1702411

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 4243, 12729, 29701, 38187, 89103, 114561, 267309, 343683, 801927, 2405781]

約数ペア:

[(1, 2405781), (3, 801927), (7, 343683), (9, 267309), (21, 114561), (27, 89103), (63, 38187), (81, 29701), (189, 12729), (567, 4243)]