28626795

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20521}}^1$

素因数の和:20563

約数の個数: 24

約数和(自身を含む): 51222912

約数和(自身を除く): 22596117

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 20521, 61563, 102605, 184689, 307815, 636151, 923445, 1908453, 3180755, 5725359, 9542265, 28626795]

約数ペア:

[(1, 28626795), (3, 9542265), (5, 5725359), (9, 3180755), (15, 1908453), (31, 923445), (45, 636151), (93, 307815), (155, 184689), (279, 102605), (465, 61563), (1395, 20521)]