18556047

素因数分解:

$3^4\times {\mathrm{107}}^1\times {\mathrm{2141}}^1$

素因数の和:2260

約数の個数: 20

約数和(自身を含む): 27991656

約数和(自身を除く): 9435609

約数列:

[1, 3, 9, 27, 81, 107, 321, 963, 2141, 2889, 6423, 8667, 19269, 57807, 173421, 229087, 687261, 2061783, 6185349, 18556047]

約数ペア:

[(1, 18556047), (3, 6185349), (9, 2061783), (27, 687261), (81, 229087), (107, 173421), (321, 57807), (963, 19269), (2141, 8667), (2889, 6423)]