2007721971

素因数分解:

$3^4\times {\mathrm{389}}^1\times {\mathrm{63719}}^1$

素因数の和:64120

約数の個数: 20

約数和(自身を含む): 3006946800

約数和(自身を除く): 999224829

約数列:

[1, 3, 9, 27, 81, 389, 1167, 3501, 10503, 31509, 63719, 191157, 573471, 1720413, 5161239, 24786691, 74360073, 223080219, 669240657, 2007721971]

約数ペア:

[(1, 2007721971), (3, 669240657), (9, 223080219), (27, 74360073), (81, 24786691), (389, 5161239), (1167, 1720413), (3501, 573471), (10503, 191157), (31509, 63719)]