20289847816

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{5939651}}^1$

素因数の和:5939725

約数の個数: 32

約数和(自身を含む): 44191010880

約数和(自身を除く): 23901163064

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 122, 244, 427, 488, 854, 1708, 3416, 5939651, 11879302, 23758604, 41577557, 47517208, 83155114, 166310228, 332620456, 362318711, 724637422, 1449274844, 2536230977, 2898549688, 5072461954, 10144923908, 20289847816]

約数ペア:

[(1, 20289847816), (2, 10144923908), (4, 5072461954), (7, 2898549688), (8, 2536230977), (14, 1449274844), (28, 724637422), (56, 362318711), (61, 332620456), (122, 166310228), (244, 83155114), (427, 47517208), (488, 41577557), (854, 23758604), (1708, 11879302), (3416, 5939651)]