138728781

素因数分解:

$3^4\times {\mathrm{379}}^1\times {\mathrm{4519}}^1$

素因数の和:4910

約数の個数: 20

約数和(自身を含む): 207829600

約数和(自身を除く): 69100819

約数列:

[1, 3, 9, 27, 81, 379, 1137, 3411, 4519, 10233, 13557, 30699, 40671, 122013, 366039, 1712701, 5138103, 15414309, 46242927, 138728781]

約数ペア:

[(1, 138728781), (3, 46242927), (9, 15414309), (27, 5138103), (81, 1712701), (379, 366039), (1137, 122013), (3411, 40671), (4519, 30699), (10233, 13557)]