20981392

素因数分解:

$2^4\times {\mathrm{733}}^1\times {\mathrm{1789}}^1$

素因数の和:2530

約数の個数: 20

約数和(自身を含む): 40729660

約数和(自身を除く): 19748268

約数列:

[1, 2, 4, 8, 16, 733, 1466, 1789, 2932, 3578, 5864, 7156, 11728, 14312, 28624, 1311337, 2622674, 5245348, 10490696, 20981392]

約数ペア:

[(1, 20981392), (2, 10490696), (4, 5245348), (8, 2622674), (16, 1311337), (733, 28624), (1466, 14312), (1789, 11728), (2932, 7156), (3578, 5864)]