28217085

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{11131}}^1$

素因数の和:11165

約数の個数: 24

約数和(自身を含む): 48891744

約数和(自身を除く): 20674659

約数列:

[1, 3, 5, 13, 15, 39, 65, 169, 195, 507, 845, 2535, 11131, 33393, 55655, 144703, 166965, 434109, 723515, 1881139, 2170545, 5643417, 9405695, 28217085]

約数ペア:

[(1, 28217085), (3, 9405695), (5, 5643417), (13, 2170545), (15, 1881139), (39, 723515), (65, 434109), (169, 166965), (195, 144703), (507, 55655), (845, 33393), (2535, 11131)]