28811657

素因数分解:

$7^3\times {\mathrm{19}}^1\times {\mathrm{4421}}^1$

素因数の和:4461

約数の個数: 16

約数和(自身を含む): 35376000

約数和(自身を除く): 6564343

約数列:

[1, 7, 19, 49, 133, 343, 931, 4421, 6517, 30947, 83999, 216629, 587993, 1516403, 4115951, 28811657]

約数ペア:

[(1, 28811657), (7, 4115951), (19, 1516403), (49, 587993), (133, 216629), (343, 83999), (931, 30947), (4421, 6517)]