56777721

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:151

約数の個数: 96

約数和(自身を含む): 107710848

約数和(自身を除く): 50933127

約数列:

[1, 3, 7, 11, 13, 21, 33, 37, 39, 49, 73, 77, 91, 111, 143, 147, 219, 231, 259, 273, 407, 429, 481, 511, 539, 637, 777, 803, 949, 1001, 1221, 1443, 1533, 1617, 1813, 1911, 2409, 2701, 2847, 2849, 3003, 3367, 3577, 5291, 5439, 5621, 6643, 7007, 8103, 8547, 10101, 10439, 10731, 15873, 16863, 18907, 19929, 19943, 21021, 23569, 29711, 31317, 35113, 37037, 39347, 46501, 56721, 59829, 70707, 73073, 89133, 105339, 111111, 118041, 132349, 139503, 207977, 219219, 245791, 259259, 386243, 397047, 511511, 623931, 737373, 777777, 1158729, 1455839, 1534533, 1720537, 2703701, 4367517, 5161611, 8111103, 18925907, 56777721]

約数ペア:

[(1, 56777721), (3, 18925907), (7, 8111103), (11, 5161611), (13, 4367517), (21, 2703701), (33, 1720537), (37, 1534533), (39, 1455839), (49, 1158729), (73, 777777), (77, 737373), (91, 623931), (111, 511511), (143, 397047), (147, 386243), (219, 259259), (231, 245791), (259, 219219), (273, 207977), (407, 139503), (429, 132349), (481, 118041), (511, 111111), (539, 105339), (637, 89133), (777, 73073), (803, 70707), (949, 59829), (1001, 56721), (1221, 46501), (1443, 39347), (1533, 37037), (1617, 35113), (1813, 31317), (1911, 29711), (2409, 23569), (2701, 21021), (2847, 19943), (2849, 19929), (3003, 18907), (3367, 16863), (3577, 15873), (5291, 10731), (5439, 10439), (5621, 10101), (6643, 8547), (7007, 8103)]