21002611

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{1787}}^1$

素因数の和:1890

約数の個数: 16

約数和(自身を含む): 25403904

約数和(自身を除く): 4401293

約数列:

[1, 7, 23, 73, 161, 511, 1679, 1787, 11753, 12509, 41101, 130451, 287707, 913157, 3000373, 21002611]

約数ペア:

[(1, 21002611), (7, 3000373), (23, 913157), (73, 287707), (161, 130451), (511, 41101), (1679, 12509), (1787, 11753)]