18931617

素因数分解:

$3^3\times {\mathrm{107}}^1\times {\mathrm{6553}}^1$

素因数の和:6669

約数の個数: 16

約数和(自身を含む): 28313280

約数和(自身を除く): 9381663

約数列:

[1, 3, 9, 27, 107, 321, 963, 2889, 6553, 19659, 58977, 176931, 701171, 2103513, 6310539, 18931617]

約数ペア:

[(1, 18931617), (3, 6310539), (9, 2103513), (27, 701171), (107, 176931), (321, 58977), (963, 19659), (2889, 6553)]