19959912

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1$

素因数の和:372

約数の個数: 128

約数和(自身を含む): 65049600

約数和(自身を除く): 45089688

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 43, 54, 56, 63, 72, 84, 86, 108, 126, 129, 168, 172, 189, 216, 252, 258, 301, 307, 344, 378, 387, 504, 516, 602, 614, 756, 774, 903, 921, 1032, 1161, 1204, 1228, 1512, 1548, 1806, 1842, 2149, 2322, 2408, 2456, 2709, 2763, 3096, 3612, 3684, 4298, 4644, 5418, 5526, 6447, 7224, 7368, 8127, 8289, 8596, 9288, 10836, 11052, 12894, 13201, 16254, 16578, 17192, 19341, 21672, 22104, 25788, 26402, 32508, 33156, 38682, 39603, 51576, 52804, 58023, 65016, 66312, 77364, 79206, 92407, 105608, 116046, 118809, 154728, 158412, 184814, 232092, 237618, 277221, 316824, 356427, 369628, 464184, 475236, 554442, 712854, 739256, 831663, 950472, 1108884, 1425708, 1663326, 2217768, 2494989, 2851416, 3326652, 4989978, 6653304, 9979956, 19959912]

約数ペア:

[(1, 19959912), (2, 9979956), (3, 6653304), (4, 4989978), (6, 3326652), (7, 2851416), (8, 2494989), (9, 2217768), (12, 1663326), (14, 1425708), (18, 1108884), (21, 950472), (24, 831663), (27, 739256), (28, 712854), (36, 554442), (42, 475236), (43, 464184), (54, 369628), (56, 356427), (63, 316824), (72, 277221), (84, 237618), (86, 232092), (108, 184814), (126, 158412), (129, 154728), (168, 118809), (172, 116046), (189, 105608), (216, 92407), (252, 79206), (258, 77364), (301, 66312), (307, 65016), (344, 58023), (378, 52804), (387, 51576), (504, 39603), (516, 38682), (602, 33156), (614, 32508), (756, 26402), (774, 25788), (903, 22104), (921, 21672), (1032, 19341), (1161, 17192), (1204, 16578), (1228, 16254), (1512, 13201), (1548, 12894), (1806, 11052), (1842, 10836), (2149, 9288), (2322, 8596), (2408, 8289), (2456, 8127), (2709, 7368), (2763, 7224), (3096, 6447), (3612, 5526), (3684, 5418), (4298, 4644)]