31990707

素因数分解:

$3^6\times 7^1\times {\mathrm{6269}}^1$

素因数の和:6294

約数の個数: 28

約数和(自身を含む): 54824880

約数和(自身を除く): 22834173

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 5103, 6269, 18807, 43883, 56421, 131649, 169263, 394947, 507789, 1184841, 1523367, 3554523, 4570101, 10663569, 31990707]

約数ペア:

[(1, 31990707), (3, 10663569), (7, 4570101), (9, 3554523), (21, 1523367), (27, 1184841), (63, 507789), (81, 394947), (189, 169263), (243, 131649), (567, 56421), (729, 43883), (1701, 18807), (5103, 6269)]