40490821

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1$

素因数の和:301

約数の個数: 32

約数和(自身を含む): 51625728

約数和(自身を除く): 11134907

約数列:

[1, 7, 17, 41, 43, 119, 193, 287, 301, 697, 731, 1351, 1763, 3281, 4879, 5117, 7913, 8299, 12341, 22967, 29971, 55391, 58093, 134521, 141083, 209797, 340259, 941647, 987581, 2381813, 5784403, 40490821]

約数ペア:

[(1, 40490821), (7, 5784403), (17, 2381813), (41, 987581), (43, 941647), (119, 340259), (193, 209797), (287, 141083), (301, 134521), (697, 58093), (731, 55391), (1351, 29971), (1763, 22967), (3281, 12341), (4879, 8299), (5117, 7913)]