18220136

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{1051}}^1$

素因数の和:1265

約数の個数: 32

約数和(自身を含む): 37493280

約数和(自身を除く): 19273144

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 197, 394, 788, 1051, 1576, 2102, 2167, 4204, 4334, 8408, 8668, 11561, 17336, 23122, 46244, 92488, 207047, 414094, 828188, 1656376, 2277517, 4555034, 9110068, 18220136]

約数ペア:

[(1, 18220136), (2, 9110068), (4, 4555034), (8, 2277517), (11, 1656376), (22, 828188), (44, 414094), (88, 207047), (197, 92488), (394, 46244), (788, 23122), (1051, 17336), (1576, 11561), (2102, 8668), (2167, 8408), (4204, 4334)]