19819818

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{883}}^1$

素因数の和:963

約数の個数: 48

約数和(自身を含む): 45508320

約数和(自身を除く): 25688502

約数列:

[1, 2, 3, 6, 9, 18, 29, 43, 58, 86, 87, 129, 174, 258, 261, 387, 522, 774, 883, 1247, 1766, 2494, 2649, 3741, 5298, 7482, 7947, 11223, 15894, 22446, 25607, 37969, 51214, 75938, 76821, 113907, 153642, 227814, 230463, 341721, 460926, 683442, 1101101, 2202202, 3303303, 6606606, 9909909, 19819818]

約数ペア:

[(1, 19819818), (2, 9909909), (3, 6606606), (6, 3303303), (9, 2202202), (18, 1101101), (29, 683442), (43, 460926), (58, 341721), (86, 230463), (87, 227814), (129, 153642), (174, 113907), (258, 76821), (261, 75938), (387, 51214), (522, 37969), (774, 25607), (883, 22446), (1247, 15894), (1766, 11223), (2494, 7947), (2649, 7482), (3741, 5298)]