20572713

素因数分解:

$3^2\times 7^1\times {\mathrm{251}}^1\times {\mathrm{1301}}^1$

素因数の和:1565

約数の個数: 24

約数和(自身を含む): 34122816

約数和(自身を除く): 13550103

約数列:

[1, 3, 7, 9, 21, 63, 251, 753, 1301, 1757, 2259, 3903, 5271, 9107, 11709, 15813, 27321, 81963, 326551, 979653, 2285857, 2938959, 6857571, 20572713]

約数ペア:

[(1, 20572713), (3, 6857571), (7, 2938959), (9, 2285857), (21, 979653), (63, 326551), (251, 81963), (753, 27321), (1301, 15813), (1757, 11709), (2259, 9107), (3903, 5271)]