20959768

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{36901}}^1$

素因数の和:36978

約数の個数: 16

約数和(自身を含む): 39854160

約数和(自身を除く): 18894392

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 36901, 73802, 147604, 295208, 2619971, 5239942, 10479884, 20959768]

約数ペア:

[(1, 20959768), (2, 10479884), (4, 5239942), (8, 2619971), (71, 295208), (142, 147604), (284, 73802), (568, 36901)]