19890009

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{32029}}^1$

素因数の和:32061

約数の個数: 16

約数和(自身を含む): 30748800

約数和(自身を除く): 10858791

約数列:

[1, 3, 9, 23, 27, 69, 207, 621, 32029, 96087, 288261, 736667, 864783, 2210001, 6630003, 19890009]

約数ペア:

[(1, 19890009), (3, 6630003), (9, 2210001), (23, 864783), (27, 736667), (69, 288261), (207, 96087), (621, 32029)]