491330511

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:241

約数の個数: 96

約数和(自身を含む): 878387328

約数和(自身を除く): 387056817

約数列:

[1, 3, 7, 9, 21, 37, 41, 53, 63, 97, 111, 123, 159, 259, 287, 291, 333, 369, 371, 477, 679, 777, 861, 873, 1113, 1517, 1961, 2037, 2173, 2331, 2583, 3339, 3589, 3977, 4551, 5141, 5883, 6111, 6519, 10619, 10767, 11931, 13653, 13727, 15211, 15423, 17649, 19557, 25123, 27839, 31857, 32301, 35793, 35987, 41181, 45633, 46269, 75369, 80401, 83517, 95571, 107961, 123543, 136899, 147149, 190217, 210781, 226107, 241203, 250551, 323883, 441447, 562807, 570651, 632343, 723609, 1030043, 1324341, 1331519, 1475467, 1688421, 1711953, 1897029, 3090129, 3994557, 4426401, 5065263, 7798897, 9270387, 11983671, 13279203, 23396691, 54592279, 70190073, 163776837, 491330511]

約数ペア:

[(1, 491330511), (3, 163776837), (7, 70190073), (9, 54592279), (21, 23396691), (37, 13279203), (41, 11983671), (53, 9270387), (63, 7798897), (97, 5065263), (111, 4426401), (123, 3994557), (159, 3090129), (259, 1897029), (287, 1711953), (291, 1688421), (333, 1475467), (369, 1331519), (371, 1324341), (477, 1030043), (679, 723609), (777, 632343), (861, 570651), (873, 562807), (1113, 441447), (1517, 323883), (1961, 250551), (2037, 241203), (2173, 226107), (2331, 210781), (2583, 190217), (3339, 147149), (3589, 136899), (3977, 123543), (4551, 107961), (5141, 95571), (5883, 83517), (6111, 80401), (6519, 75369), (10619, 46269), (10767, 45633), (11931, 41181), (13653, 35987), (13727, 35793), (15211, 32301), (15423, 31857), (17649, 27839), (19557, 25123)]