31888857

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:119

約数の個数: 96

約数和(自身を含む): 61133184

約数和(自身を除く): 29244327

約数列:

[1, 3, 7, 11, 13, 21, 33, 37, 39, 41, 49, 77, 91, 111, 123, 143, 147, 231, 259, 273, 287, 407, 429, 451, 481, 533, 539, 637, 777, 861, 1001, 1221, 1353, 1443, 1517, 1599, 1617, 1813, 1911, 2009, 2849, 3003, 3157, 3367, 3731, 4551, 5291, 5439, 5863, 6027, 7007, 8547, 9471, 10101, 10619, 11193, 15873, 16687, 17589, 19721, 19943, 21021, 22099, 23569, 26117, 31857, 37037, 41041, 50061, 59163, 59829, 66297, 70707, 74333, 78351, 111111, 116809, 123123, 138047, 216931, 222999, 259259, 287287, 350427, 414141, 650793, 777777, 817663, 861861, 966329, 1518517, 2452989, 2898987, 4555551, 10629619, 31888857]

約数ペア:

[(1, 31888857), (3, 10629619), (7, 4555551), (11, 2898987), (13, 2452989), (21, 1518517), (33, 966329), (37, 861861), (39, 817663), (41, 777777), (49, 650793), (77, 414141), (91, 350427), (111, 287287), (123, 259259), (143, 222999), (147, 216931), (231, 138047), (259, 123123), (273, 116809), (287, 111111), (407, 78351), (429, 74333), (451, 70707), (481, 66297), (533, 59829), (539, 59163), (637, 50061), (777, 41041), (861, 37037), (1001, 31857), (1221, 26117), (1353, 23569), (1443, 22099), (1517, 21021), (1599, 19943), (1617, 19721), (1813, 17589), (1911, 16687), (2009, 15873), (2849, 11193), (3003, 10619), (3157, 10101), (3367, 9471), (3731, 8547), (4551, 7007), (5291, 6027), (5439, 5863)]