20490888

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{77617}}^1$

素因数の和:77637

約数の個数: 32

約数和(自身を含む): 55884960

約数和(自身を除く): 35394072

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 132, 264, 77617, 155234, 232851, 310468, 465702, 620936, 853787, 931404, 1707574, 1862808, 2561361, 3415148, 5122722, 6830296, 10245444, 20490888]

約数ペア:

[(1, 20490888), (2, 10245444), (3, 6830296), (4, 5122722), (6, 3415148), (8, 2561361), (11, 1862808), (12, 1707574), (22, 931404), (24, 853787), (33, 620936), (44, 465702), (66, 310468), (88, 232851), (132, 155234), (264, 77617)]