19954494

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:214

約数の個数: 96

約数和(自身を含む): 52715520

約数和(自身を除く): 32761026

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 29, 42, 43, 58, 63, 86, 87, 126, 127, 129, 174, 203, 254, 258, 261, 301, 381, 387, 406, 522, 602, 609, 762, 774, 889, 903, 1143, 1218, 1247, 1778, 1806, 1827, 2286, 2494, 2667, 2709, 3654, 3683, 3741, 5334, 5418, 5461, 7366, 7482, 8001, 8729, 10922, 11049, 11223, 16002, 16383, 17458, 22098, 22446, 25781, 26187, 32766, 33147, 38227, 49149, 51562, 52374, 66294, 76454, 77343, 78561, 98298, 114681, 154686, 157122, 158369, 229362, 232029, 316738, 344043, 464058, 475107, 688086, 950214, 1108583, 1425321, 2217166, 2850642, 3325749, 6651498, 9977247, 19954494]

約数ペア:

[(1, 19954494), (2, 9977247), (3, 6651498), (6, 3325749), (7, 2850642), (9, 2217166), (14, 1425321), (18, 1108583), (21, 950214), (29, 688086), (42, 475107), (43, 464058), (58, 344043), (63, 316738), (86, 232029), (87, 229362), (126, 158369), (127, 157122), (129, 154686), (174, 114681), (203, 98298), (254, 78561), (258, 77343), (261, 76454), (301, 66294), (381, 52374), (387, 51562), (406, 49149), (522, 38227), (602, 33147), (609, 32766), (762, 26187), (774, 25781), (889, 22446), (903, 22098), (1143, 17458), (1218, 16383), (1247, 16002), (1778, 11223), (1806, 11049), (1827, 10922), (2286, 8729), (2494, 8001), (2667, 7482), (2709, 7366), (3654, 5461), (3683, 5418), (3741, 5334)]