247267215

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{140893}}^1$

素因数の和:140920

約数の個数: 32

約数和(自身を含む): 473403840

約数和(自身を除く): 226136625

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 140893, 422679, 704465, 1268037, 1831609, 2113395, 3804111, 5494827, 6340185, 9158045, 16484481, 19020555, 27474135, 49453443, 82422405, 247267215]

約数ペア:

[(1, 247267215), (3, 82422405), (5, 49453443), (9, 27474135), (13, 19020555), (15, 16484481), (27, 9158045), (39, 6340185), (45, 5494827), (65, 3804111), (117, 2113395), (135, 1831609), (195, 1268037), (351, 704465), (585, 422679), (1755, 140893)]