20867624

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 44236800

約数和(自身を除く): 23369176

約数列:

[1, 2, 4, 8, 19, 23, 38, 46, 47, 76, 92, 94, 127, 152, 184, 188, 254, 376, 437, 508, 874, 893, 1016, 1081, 1748, 1786, 2162, 2413, 2921, 3496, 3572, 4324, 4826, 5842, 5969, 7144, 8648, 9652, 11684, 11938, 19304, 20539, 23368, 23876, 41078, 47752, 55499, 82156, 110998, 113411, 137287, 164312, 221996, 226822, 274574, 443992, 453644, 549148, 907288, 1098296, 2608453, 5216906, 10433812, 20867624]

約数ペア:

[(1, 20867624), (2, 10433812), (4, 5216906), (8, 2608453), (19, 1098296), (23, 907288), (38, 549148), (46, 453644), (47, 443992), (76, 274574), (92, 226822), (94, 221996), (127, 164312), (152, 137287), (184, 113411), (188, 110998), (254, 82156), (376, 55499), (437, 47752), (508, 41078), (874, 23876), (893, 23368), (1016, 20539), (1081, 19304), (1748, 11938), (1786, 11684), (2162, 9652), (2413, 8648), (2921, 7144), (3496, 5969), (3572, 5842), (4324, 4826)]