18365128

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{271}}^1$

素因数の和:517

約数の個数: 32

約数和(自身を含む): 35544960

約数和(自身を除く): 17179832

約数列:

[1, 2, 4, 8, 43, 86, 172, 197, 271, 344, 394, 542, 788, 1084, 1576, 2168, 8471, 11653, 16942, 23306, 33884, 46612, 53387, 67768, 93224, 106774, 213548, 427096, 2295641, 4591282, 9182564, 18365128]

約数ペア:

[(1, 18365128), (2, 9182564), (4, 4591282), (8, 2295641), (43, 427096), (86, 213548), (172, 106774), (197, 93224), (271, 67768), (344, 53387), (394, 46612), (542, 33884), (788, 23306), (1084, 16942), (1576, 11653), (2168, 8471)]