28487997

素因数分解:

$3^3\times {\mathrm{811}}^1\times {\mathrm{1301}}^1$

素因数の和:2121

約数の個数: 16

約数和(自身を含む): 42288960

約数和(自身を除く): 13800963

約数列:

[1, 3, 9, 27, 811, 1301, 2433, 3903, 7299, 11709, 21897, 35127, 1055111, 3165333, 9495999, 28487997]

約数ペア:

[(1, 28487997), (3, 9495999), (9, 3165333), (27, 1055111), (811, 35127), (1301, 21897), (2433, 11709), (3903, 7299)]