21101304

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:209

約数の個数: 128

約数和(自身を含む): 64880640

約数和(自身を除く): 43779336

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 23, 24, 28, 42, 43, 46, 56, 69, 84, 86, 92, 127, 129, 138, 161, 168, 172, 184, 254, 258, 276, 301, 322, 344, 381, 483, 508, 516, 552, 602, 644, 762, 889, 903, 966, 989, 1016, 1032, 1204, 1288, 1524, 1778, 1806, 1932, 1978, 2408, 2667, 2921, 2967, 3048, 3556, 3612, 3864, 3956, 5334, 5461, 5842, 5934, 6923, 7112, 7224, 7912, 8763, 10668, 10922, 11684, 11868, 13846, 16383, 17526, 20447, 20769, 21336, 21844, 23368, 23736, 27692, 32766, 35052, 38227, 40894, 41538, 43688, 55384, 61341, 65532, 70104, 76454, 81788, 83076, 114681, 122682, 125603, 131064, 152908, 163576, 166152, 229362, 245364, 251206, 305816, 376809, 458724, 490728, 502412, 753618, 879221, 917448, 1004824, 1507236, 1758442, 2637663, 3014472, 3516884, 5275326, 7033768, 10550652, 21101304]

約数ペア:

[(1, 21101304), (2, 10550652), (3, 7033768), (4, 5275326), (6, 3516884), (7, 3014472), (8, 2637663), (12, 1758442), (14, 1507236), (21, 1004824), (23, 917448), (24, 879221), (28, 753618), (42, 502412), (43, 490728), (46, 458724), (56, 376809), (69, 305816), (84, 251206), (86, 245364), (92, 229362), (127, 166152), (129, 163576), (138, 152908), (161, 131064), (168, 125603), (172, 122682), (184, 114681), (254, 83076), (258, 81788), (276, 76454), (301, 70104), (322, 65532), (344, 61341), (381, 55384), (483, 43688), (508, 41538), (516, 40894), (552, 38227), (602, 35052), (644, 32766), (762, 27692), (889, 23736), (903, 23368), (966, 21844), (989, 21336), (1016, 20769), (1032, 20447), (1204, 17526), (1288, 16383), (1524, 13846), (1778, 11868), (1806, 11684), (1932, 10922), (1978, 10668), (2408, 8763), (2667, 7912), (2921, 7224), (2967, 7112), (3048, 6923), (3556, 5934), (3612, 5842), (3864, 5461), (3956, 5334)]