20437256

素因数分解:

$2^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{4397}}^1$

素因数の和:4493

約数の個数: 32

約数和(自身を含む): 44331840

約数和(自身を除く): 23894584

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 83, 166, 332, 581, 664, 1162, 2324, 4397, 4648, 8794, 17588, 30779, 35176, 61558, 123116, 246232, 364951, 729902, 1459804, 2554657, 2919608, 5109314, 10218628, 20437256]

約数ペア:

[(1, 20437256), (2, 10218628), (4, 5109314), (7, 2919608), (8, 2554657), (14, 1459804), (28, 729902), (56, 364951), (83, 246232), (166, 123116), (332, 61558), (581, 35176), (664, 30779), (1162, 17588), (2324, 8794), (4397, 4648)]