19783521

素因数分解:

$3^4\times {\mathrm{467}}^1\times {\mathrm{523}}^1$

素因数の和:1002

約数の個数: 20

約数和(自身を含む): 29673072

約数和(自身を除く): 9889551

約数列:

[1, 3, 9, 27, 81, 467, 523, 1401, 1569, 4203, 4707, 12609, 14121, 37827, 42363, 244241, 732723, 2198169, 6594507, 19783521]

約数ペア:

[(1, 19783521), (3, 6594507), (9, 2198169), (27, 732723), (81, 244241), (467, 42363), (523, 37827), (1401, 14121), (1569, 12609), (4203, 4707)]