21510888

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{293}}^1$

素因数の和:351

約数の個数: 128

約数和(自身を含む): 67737600

約数和(自身を除く): 46226712

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 19, 21, 23, 24, 28, 38, 42, 46, 56, 57, 69, 76, 84, 92, 114, 133, 138, 152, 161, 168, 184, 228, 266, 276, 293, 322, 399, 437, 456, 483, 532, 552, 586, 644, 798, 874, 879, 966, 1064, 1172, 1288, 1311, 1596, 1748, 1758, 1932, 2051, 2344, 2622, 3059, 3192, 3496, 3516, 3864, 4102, 5244, 5567, 6118, 6153, 6739, 7032, 8204, 9177, 10488, 11134, 12236, 12306, 13478, 16408, 16701, 18354, 20217, 22268, 24472, 24612, 26956, 33402, 36708, 38969, 40434, 44536, 47173, 49224, 53912, 66804, 73416, 77938, 80868, 94346, 116907, 128041, 133608, 141519, 155876, 161736, 188692, 233814, 256082, 283038, 311752, 377384, 384123, 467628, 512164, 566076, 768246, 896287, 935256, 1024328, 1132152, 1536492, 1792574, 2688861, 3072984, 3585148, 5377722, 7170296, 10755444, 21510888]

約数ペア:

[(1, 21510888), (2, 10755444), (3, 7170296), (4, 5377722), (6, 3585148), (7, 3072984), (8, 2688861), (12, 1792574), (14, 1536492), (19, 1132152), (21, 1024328), (23, 935256), (24, 896287), (28, 768246), (38, 566076), (42, 512164), (46, 467628), (56, 384123), (57, 377384), (69, 311752), (76, 283038), (84, 256082), (92, 233814), (114, 188692), (133, 161736), (138, 155876), (152, 141519), (161, 133608), (168, 128041), (184, 116907), (228, 94346), (266, 80868), (276, 77938), (293, 73416), (322, 66804), (399, 53912), (437, 49224), (456, 47173), (483, 44536), (532, 40434), (552, 38969), (586, 36708), (644, 33402), (798, 26956), (874, 24612), (879, 24472), (966, 22268), (1064, 20217), (1172, 18354), (1288, 16701), (1311, 16408), (1596, 13478), (1748, 12306), (1758, 12236), (1932, 11134), (2051, 10488), (2344, 9177), (2622, 8204), (3059, 7032), (3192, 6739), (3496, 6153), (3516, 6118), (3864, 5567), (4102, 5244)]