671245905

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{20443}}^1$

素因数の和:20661

約数の個数: 32

約数和(自身を含む): 1177574400

約数和(自身を除く): 506328495

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 199, 597, 995, 2189, 2985, 6567, 10945, 20443, 32835, 61329, 102215, 224873, 306645, 674619, 1124365, 3373095, 4068157, 12204471, 20340785, 44749727, 61022355, 134249181, 223748635, 671245905]

約数ペア:

[(1, 671245905), (3, 223748635), (5, 134249181), (11, 61022355), (15, 44749727), (33, 20340785), (55, 12204471), (165, 4068157), (199, 3373095), (597, 1124365), (995, 674619), (2189, 306645), (2985, 224873), (6567, 102215), (10945, 61329), (20443, 32835)]