28213605

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{89567}}^1$

素因数の和:89585

約数の個数: 24

約数和(自身を含む): 55890432

約数和(自身を除く): 27676827

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 89567, 268701, 447835, 626969, 806103, 1343505, 1880907, 3134845, 4030515, 5642721, 9404535, 28213605]

約数ペア:

[(1, 28213605), (3, 9404535), (5, 5642721), (7, 4030515), (9, 3134845), (15, 1880907), (21, 1343505), (35, 806103), (45, 626969), (63, 447835), (105, 268701), (315, 89567)]