18657806

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:280

約数の個数: 32

約数和(自身を含む): 30792960

約数和(自身を除く): 12135154

約数列:

[1, 2, 17, 34, 59, 71, 118, 131, 142, 262, 1003, 1207, 2006, 2227, 2414, 4189, 4454, 7729, 8378, 9301, 15458, 18602, 71213, 131393, 142426, 158117, 262786, 316234, 548759, 1097518, 9328903, 18657806]

約数ペア:

[(1, 18657806), (2, 9328903), (17, 1097518), (34, 548759), (59, 316234), (71, 262786), (118, 158117), (131, 142426), (142, 131393), (262, 71213), (1003, 18602), (1207, 15458), (2006, 9301), (2227, 8378), (2414, 7729), (4189, 4454)]