16821027

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{9029}}^1$

素因数の和:9064

約数の個数: 20

約数和(自身を含む): 26223120

約数和(自身を除く): 9402093

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 9029, 27087, 81261, 207667, 243783, 623001, 731349, 1869003, 5607009, 16821027]

約数ペア:

[(1, 16821027), (3, 5607009), (9, 1869003), (23, 731349), (27, 623001), (69, 243783), (81, 207667), (207, 81261), (621, 27087), (1863, 9029)]