19771587

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{66571}}^1$

素因数の和:66591

約数の個数: 16

約数和(自身を含む): 31954560

約数和(自身を除く): 12182973

約数列:

[1, 3, 9, 11, 27, 33, 99, 297, 66571, 199713, 599139, 732281, 1797417, 2196843, 6590529, 19771587]

約数ペア:

[(1, 19771587), (3, 6590529), (9, 2196843), (11, 1797417), (27, 732281), (33, 599139), (99, 199713), (297, 66571)]