20563856

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{9811}}^1$

素因数の和:9950

約数の個数: 20

約数和(自身を含む): 40150704

約数和(自身を除く): 19586848

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 9811, 19622, 39244, 78488, 156976, 1285241, 2570482, 5140964, 10281928, 20563856]

約数ペア:

[(1, 20563856), (2, 10281928), (4, 5140964), (8, 2570482), (16, 1285241), (131, 156976), (262, 78488), (524, 39244), (1048, 19622), (2096, 9811)]