19821429

素因数分解:

$3^4\times {\mathrm{107}}^1\times {\mathrm{2287}}^1$

素因数の和:2406

約数の個数: 20

約数和(自身を含む): 29899584

約数和(自身を除く): 10078155

約数列:

[1, 3, 9, 27, 81, 107, 321, 963, 2287, 2889, 6861, 8667, 20583, 61749, 185247, 244709, 734127, 2202381, 6607143, 19821429]

約数ペア:

[(1, 19821429), (3, 6607143), (9, 2202381), (27, 734127), (81, 244709), (107, 185247), (321, 61749), (963, 20583), (2287, 8667), (2889, 6861)]