80138889

素因数分解:

$3^4\times {\mathrm{73}}^1\times {\mathrm{13553}}^1$

素因数の和:13638

約数の個数: 20

約数和(自身を含む): 121362516

約数和(自身を除く): 41223627

約数列:

[1, 3, 9, 27, 73, 81, 219, 657, 1971, 5913, 13553, 40659, 121977, 365931, 989369, 1097793, 2968107, 8904321, 26712963, 80138889]

約数ペア:

[(1, 80138889), (3, 26712963), (9, 8904321), (27, 2968107), (73, 1097793), (81, 989369), (219, 365931), (657, 121977), (1971, 40659), (5913, 13553)]