16561904

素因数分解:

$2^4\times {\mathrm{479}}^1\times {\mathrm{2161}}^1$

素因数の和:2648

約数の個数: 20

約数和(自身を含む): 32170560

約数和(自身を除く): 15608656

約数列:

[1, 2, 4, 8, 16, 479, 958, 1916, 2161, 3832, 4322, 7664, 8644, 17288, 34576, 1035119, 2070238, 4140476, 8280952, 16561904]

約数ペア:

[(1, 16561904), (2, 8280952), (4, 4140476), (8, 2070238), (16, 1035119), (479, 34576), (958, 17288), (1916, 8644), (2161, 7664), (3832, 4322)]