21198248920

素因数分解:

$2^3\times 5^1\times {\mathrm{529956223}}^1$

素因数の和:529956234

約数の個数: 16

約数和(自身を含む): 47696060160

約数和(自身を除く): 26497811240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 529956223, 1059912446, 2119824892, 2649781115, 4239649784, 5299562230, 10599124460, 21198248920]

約数ペア:

[(1, 21198248920), (2, 10599124460), (4, 5299562230), (5, 4239649784), (8, 2649781115), (10, 2119824892), (20, 1059912446), (40, 529956223)]