987471

素因数分解:

$3^4\times {\mathrm{73}}^1\times {\mathrm{167}}^1$

素因数の和:252

約数の個数: 20

約数和(自身を含む): 1504272

約数和(自身を除く): 516801

約数列:

[1, 3, 9, 27, 73, 81, 167, 219, 501, 657, 1503, 1971, 4509, 5913, 12191, 13527, 36573, 109719, 329157, 987471]

約数ペア:

[(1, 987471), (3, 329157), (9, 109719), (27, 36573), (73, 13527), (81, 12191), (167, 5913), (219, 4509), (501, 1971), (657, 1503)]