20998670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{27271}}^1$

素因数の和:27296

約数の個数: 32

約数和(自身を含む): 47126016

約数和(自身を除く): 26127346

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 27271, 54542, 136355, 190897, 272710, 299981, 381794, 599962, 954485, 1499905, 1908970, 2099867, 2999810, 4199734, 10499335, 20998670]

約数ペア:

[(1, 20998670), (2, 10499335), (5, 4199734), (7, 2999810), (10, 2099867), (11, 1908970), (14, 1499905), (22, 954485), (35, 599962), (55, 381794), (70, 299981), (77, 272710), (110, 190897), (154, 136355), (385, 54542), (770, 27271)]