28276515

素因数分解:

$3^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1567}}^1$

素因数の和:1979

約数の個数: 24

約数和(自身を含む): 49166208

約数和(自身を除く): 20889693

約数列:

[1, 3, 5, 9, 15, 45, 401, 1203, 1567, 2005, 3609, 4701, 6015, 7835, 14103, 18045, 23505, 70515, 628367, 1885101, 3141835, 5655303, 9425505, 28276515]

約数ペア:

[(1, 28276515), (3, 9425505), (5, 5655303), (9, 3141835), (15, 1885101), (45, 628367), (401, 70515), (1203, 23505), (1567, 18045), (2005, 14103), (3609, 7835), (4701, 6015)]