18838638

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:119

約数の個数: 144

約数和(自身を含む): 53778816

約数和(自身を除く): 34940178

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 31, 39, 42, 49, 53, 62, 63, 78, 91, 93, 98, 106, 117, 126, 147, 159, 182, 186, 217, 234, 273, 279, 294, 318, 371, 403, 434, 441, 477, 546, 558, 637, 651, 689, 742, 806, 819, 882, 954, 1113, 1209, 1274, 1302, 1378, 1519, 1638, 1643, 1911, 1953, 2067, 2226, 2418, 2597, 2821, 3038, 3286, 3339, 3627, 3822, 3906, 4134, 4557, 4823, 4929, 5194, 5642, 5733, 6201, 6678, 7254, 7791, 8463, 9114, 9646, 9858, 11466, 11501, 12402, 13671, 14469, 14787, 15582, 16926, 19747, 21359, 23002, 23373, 25389, 27342, 28938, 29574, 33761, 34503, 39494, 42718, 43407, 46746, 50778, 59241, 64077, 67522, 69006, 80507, 86814, 101283, 103509, 118482, 128154, 149513, 161014, 177723, 192231, 202566, 207018, 241521, 299026, 303849, 355446, 384462, 448539, 483042, 607698, 724563, 897078, 1046591, 1345617, 1449126, 2093182, 2691234, 3139773, 6279546, 9419319, 18838638]

約数ペア:

[(1, 18838638), (2, 9419319), (3, 6279546), (6, 3139773), (7, 2691234), (9, 2093182), (13, 1449126), (14, 1345617), (18, 1046591), (21, 897078), (26, 724563), (31, 607698), (39, 483042), (42, 448539), (49, 384462), (53, 355446), (62, 303849), (63, 299026), (78, 241521), (91, 207018), (93, 202566), (98, 192231), (106, 177723), (117, 161014), (126, 149513), (147, 128154), (159, 118482), (182, 103509), (186, 101283), (217, 86814), (234, 80507), (273, 69006), (279, 67522), (294, 64077), (318, 59241), (371, 50778), (403, 46746), (434, 43407), (441, 42718), (477, 39494), (546, 34503), (558, 33761), (637, 29574), (651, 28938), (689, 27342), (742, 25389), (806, 23373), (819, 23002), (882, 21359), (954, 19747), (1113, 16926), (1209, 15582), (1274, 14787), (1302, 14469), (1378, 13671), (1519, 12402), (1638, 11501), (1643, 11466), (1911, 9858), (1953, 9646), (2067, 9114), (2226, 8463), (2418, 7791), (2597, 7254), (2821, 6678), (3038, 6201), (3286, 5733), (3339, 5642), (3627, 5194), (3822, 4929), (3906, 4823), (4134, 4557)]