20809765744

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{12155237}}^1$

素因数の和:12155352

約数の個数: 20

約数和(自身を含む): 40695736824

約数和(自身を除く): 19885971080

約数列:

[1, 2, 4, 8, 16, 107, 214, 428, 856, 1712, 12155237, 24310474, 48620948, 97241896, 194483792, 1300610359, 2601220718, 5202441436, 10404882872, 20809765744]

約数ペア:

[(1, 20809765744), (2, 10404882872), (4, 5202441436), (8, 2601220718), (16, 1300610359), (107, 194483792), (214, 97241896), (428, 48620948), (856, 24310474), (1712, 12155237)]