28747881

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{167}}^1\times {\mathrm{617}}^1$

素因数の和:821

約数の個数: 24

約数和(自身を含む): 43190784

約数和(自身を除く): 14442903

約数列:

[1, 3, 9, 31, 93, 167, 279, 501, 617, 1503, 1851, 5177, 5553, 15531, 19127, 46593, 57381, 103039, 172143, 309117, 927351, 3194209, 9582627, 28747881]

約数ペア:

[(1, 28747881), (3, 9582627), (9, 3194209), (31, 927351), (93, 309117), (167, 172143), (279, 103039), (501, 57381), (617, 46593), (1503, 19127), (1851, 15531), (5177, 5553)]