21280112

素因数分解:

$2^4\times 7^2\times {\mathrm{27143}}^1$

素因数の和:27165

約数の個数: 30

約数和(自身を含む): 47963448

約数和(自身を除く): 26683336

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 27143, 54286, 108572, 190001, 217144, 380002, 434288, 760004, 1330007, 1520008, 2660014, 3040016, 5320028, 10640056, 21280112]

約数ペア:

[(1, 21280112), (2, 10640056), (4, 5320028), (7, 3040016), (8, 2660014), (14, 1520008), (16, 1330007), (28, 760004), (49, 434288), (56, 380002), (98, 217144), (112, 190001), (196, 108572), (392, 54286), (784, 27143)]