21271688

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{599}}^1$

素因数の和:821

約数の個数: 32

約数和(自身を含む): 41904000

約数和(自身を除く): 20632312

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 193, 386, 599, 772, 1198, 1544, 2396, 4439, 4792, 8878, 13777, 17756, 27554, 35512, 55108, 110216, 115607, 231214, 462428, 924856, 2658961, 5317922, 10635844, 21271688]

約数ペア:

[(1, 21271688), (2, 10635844), (4, 5317922), (8, 2658961), (23, 924856), (46, 462428), (92, 231214), (184, 115607), (193, 110216), (386, 55108), (599, 35512), (772, 27554), (1198, 17756), (1544, 13777), (2396, 8878), (4439, 4792)]