28305531

素因数分解:

$3^4\times {\mathrm{73}}^1\times {\mathrm{4787}}^1$

素因数の和:4872

約数の個数: 20

約数和(自身を含む): 42871752

約数和(自身を除く): 14566221

約数列:

[1, 3, 9, 27, 73, 81, 219, 657, 1971, 4787, 5913, 14361, 43083, 129249, 349451, 387747, 1048353, 3145059, 9435177, 28305531]

約数ペア:

[(1, 28305531), (3, 9435177), (9, 3145059), (27, 1048353), (73, 387747), (81, 349451), (219, 129249), (657, 43083), (1971, 14361), (4787, 5913)]