20680197

素因数分解:

$3^1\times {\mathrm{23}}^2\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:289

約数の個数: 24

約数和(自身を含む): 29357664

約数和(自身を除く): 8677467

約数列:

[1, 3, 23, 69, 83, 157, 249, 471, 529, 1587, 1909, 3611, 5727, 10833, 13031, 39093, 43907, 83053, 131721, 249159, 299713, 899139, 6893399, 20680197]

約数ペア:

[(1, 20680197), (3, 6893399), (23, 899139), (69, 299713), (83, 249159), (157, 131721), (249, 83053), (471, 43907), (529, 39093), (1587, 13031), (1909, 10833), (3611, 5727)]