16131321

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{571}}^1$

素因数の和:693

約数の個数: 24

約数和(自身を含む): 24211616

約数和(自身を除く): 8080295

約数列:

[1, 3, 9, 43, 73, 129, 219, 387, 571, 657, 1713, 3139, 5139, 9417, 24553, 28251, 41683, 73659, 125049, 220977, 375147, 1792369, 5377107, 16131321]

約数ペア:

[(1, 16131321), (3, 5377107), (9, 1792369), (43, 375147), (73, 220977), (129, 125049), (219, 73659), (387, 41683), (571, 28251), (657, 24553), (1713, 9417), (3139, 5139)]