16170021

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 28114944

約数和(自身を除く): 11944923

約数列:

[1, 3, 7, 9, 21, 43, 47, 63, 127, 129, 141, 301, 329, 381, 387, 423, 889, 903, 987, 1143, 2021, 2667, 2709, 2961, 5461, 5969, 6063, 8001, 14147, 16383, 17907, 18189, 38227, 41783, 42441, 49149, 53721, 114681, 125349, 127323, 256667, 344043, 376047, 770001, 1796669, 2310003, 5390007, 16170021]

約数ペア:

[(1, 16170021), (3, 5390007), (7, 2310003), (9, 1796669), (21, 770001), (43, 376047), (47, 344043), (63, 256667), (127, 127323), (129, 125349), (141, 114681), (301, 53721), (329, 49149), (381, 42441), (387, 41783), (423, 38227), (889, 18189), (903, 17907), (987, 16383), (1143, 14147), (2021, 8001), (2667, 6063), (2709, 5969), (2961, 5461)]