21438604

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{2551}}^1$

素因数の和:2757

約数の個数: 24

約数和(自身を含む): 41158656

約数和(自身を除く): 19720052

約数列:

[1, 2, 4, 11, 22, 44, 191, 382, 764, 2101, 2551, 4202, 5102, 8404, 10204, 28061, 56122, 112244, 487241, 974482, 1948964, 5359651, 10719302, 21438604]

約数ペア:

[(1, 21438604), (2, 10719302), (4, 5359651), (11, 1948964), (22, 974482), (44, 487241), (191, 112244), (382, 56122), (764, 28061), (2101, 10204), (2551, 8404), (4202, 5102)]