20804513510

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{189131941}}^1$

素因数の和:189131959

約数の個数: 16

約数和(自身を含む): 40852499472

約数和(自身を除く): 20047985962

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 189131941, 378263882, 945659705, 1891319410, 2080451351, 4160902702, 10402256755, 20804513510]

約数ペア:

[(1, 20804513510), (2, 10402256755), (5, 4160902702), (10, 2080451351), (11, 1891319410), (22, 945659705), (55, 378263882), (110, 189131941)]