21175398

素因数分解:

$2^1\times 3^3\times {\mathrm{271}}^1\times {\mathrm{1447}}^1$

素因数の和:1729

約数の個数: 32

約数和(自身を含む): 47262720

約数和(自身を除く): 26087322

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 271, 542, 813, 1447, 1626, 2439, 2894, 4341, 4878, 7317, 8682, 13023, 14634, 26046, 39069, 78138, 392137, 784274, 1176411, 2352822, 3529233, 7058466, 10587699, 21175398]

約数ペア:

[(1, 21175398), (2, 10587699), (3, 7058466), (6, 3529233), (9, 2352822), (18, 1176411), (27, 784274), (54, 392137), (271, 78138), (542, 39069), (813, 26046), (1447, 14634), (1626, 13023), (2439, 8682), (2894, 7317), (4341, 4878)]