2187408159

素因数分解:

$3^4\times {\mathrm{27005039}}^1$

素因数の和:27005051

約数の個数: 10

約数和(自身を含む): 3267609840

約数和(自身を除く): 1080201681

約数列:

[1, 3, 9, 27, 81, 27005039, 81015117, 243045351, 729136053, 2187408159]

約数ペア:

[(1, 2187408159), (3, 729136053), (9, 243045351), (27, 81015117), (81, 27005039)]