28007145

素因数分解:

$3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{4751}}^1$

素因数の和:4893

約数の個数: 24

約数和(自身を含む): 48926592

約数和(自身を除く): 20919447

約数列:

[1, 3, 5, 9, 15, 45, 131, 393, 655, 1179, 1965, 4751, 5895, 14253, 23755, 42759, 71265, 213795, 622381, 1867143, 3111905, 5601429, 9335715, 28007145]

約数ペア:

[(1, 28007145), (3, 9335715), (5, 5601429), (9, 3111905), (15, 1867143), (45, 622381), (131, 213795), (393, 71265), (655, 42759), (1179, 23755), (1965, 14253), (4751, 5895)]