20916928

素因数分解:

$2^6\times {\mathrm{317}}^1\times {\mathrm{1031}}^1$

素因数の和:1360

約数の個数: 28

約数和(自身を含む): 41678352

約数和(自身を除く): 20761424

約数列:

[1, 2, 4, 8, 16, 32, 64, 317, 634, 1031, 1268, 2062, 2536, 4124, 5072, 8248, 10144, 16496, 20288, 32992, 65984, 326827, 653654, 1307308, 2614616, 5229232, 10458464, 20916928]

約数ペア:

[(1, 20916928), (2, 10458464), (4, 5229232), (8, 2614616), (16, 1307308), (32, 653654), (64, 326827), (317, 65984), (634, 32992), (1031, 20288), (1268, 16496), (2062, 10144), (2536, 8248), (4124, 5072)]