28307867

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{1787}}^1$

素因数の和:1898

約数の個数: 16

約数和(自身を含む): 33871872

約数和(自身を除く): 5564005

約数列:

[1, 7, 31, 73, 217, 511, 1787, 2263, 12509, 15841, 55397, 130451, 387779, 913157, 4043981, 28307867]

約数ペア:

[(1, 28307867), (7, 4043981), (31, 913157), (73, 387779), (217, 130451), (511, 55397), (1787, 15841), (2263, 12509)]