18965584

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{547}}^1$

素因数の和:763

約数の個数: 40

約数和(自身を含む): 40363488

約数和(自身を除く): 21397904

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 197, 394, 547, 788, 1094, 1576, 2167, 2188, 3152, 4334, 4376, 6017, 8668, 8752, 12034, 17336, 24068, 34672, 48136, 96272, 107759, 215518, 431036, 862072, 1185349, 1724144, 2370698, 4741396, 9482792, 18965584]

約数ペア:

[(1, 18965584), (2, 9482792), (4, 4741396), (8, 2370698), (11, 1724144), (16, 1185349), (22, 862072), (44, 431036), (88, 215518), (176, 107759), (197, 96272), (394, 48136), (547, 34672), (788, 24068), (1094, 17336), (1576, 12034), (2167, 8752), (2188, 8668), (3152, 6017), (4334, 4376)]