21343040

素因数分解:

$2^6\times 5^1\times {\mathrm{66697}}^1$

素因数の和:66714

約数の個数: 28

約数和(自身を含む): 50823876

約数和(自身を除く): 29480836

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 66697, 133394, 266788, 333485, 533576, 666970, 1067152, 1333940, 2134304, 2667880, 4268608, 5335760, 10671520, 21343040]

約数ペア:

[(1, 21343040), (2, 10671520), (4, 5335760), (5, 4268608), (8, 2667880), (10, 2134304), (16, 1333940), (20, 1067152), (32, 666970), (40, 533576), (64, 333485), (80, 266788), (160, 133394), (320, 66697)]