21325245

素因数分解:

$3^1\times 5^1\times {\mathrm{811}}^1\times {\mathrm{1753}}^1$

素因数の和:2572

約数の個数: 16

約数和(自身を含む): 34181952

約数和(自身を除く): 12856707

約数列:

[1, 3, 5, 15, 811, 1753, 2433, 4055, 5259, 8765, 12165, 26295, 1421683, 4265049, 7108415, 21325245]

約数ペア:

[(1, 21325245), (3, 7108415), (5, 4265049), (15, 1421683), (811, 26295), (1753, 12165), (2433, 8765), (4055, 5259)]