18278988

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{881}}^1$

素因数の和:927

約数の個数: 96

約数和(自身を含む): 55319040

約数和(自身を除く): 37040052

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 19, 21, 26, 28, 38, 39, 42, 52, 57, 76, 78, 84, 91, 114, 133, 156, 182, 228, 247, 266, 273, 364, 399, 494, 532, 546, 741, 798, 881, 988, 1092, 1482, 1596, 1729, 1762, 2643, 2964, 3458, 3524, 5187, 5286, 6167, 6916, 10374, 10572, 11453, 12334, 16739, 18501, 20748, 22906, 24668, 33478, 34359, 37002, 45812, 50217, 66956, 68718, 74004, 80171, 100434, 117173, 137436, 160342, 200868, 217607, 234346, 240513, 320684, 351519, 435214, 468692, 481026, 652821, 703038, 870428, 962052, 1305642, 1406076, 1523249, 2611284, 3046498, 4569747, 6092996, 9139494, 18278988]

約数ペア:

[(1, 18278988), (2, 9139494), (3, 6092996), (4, 4569747), (6, 3046498), (7, 2611284), (12, 1523249), (13, 1406076), (14, 1305642), (19, 962052), (21, 870428), (26, 703038), (28, 652821), (38, 481026), (39, 468692), (42, 435214), (52, 351519), (57, 320684), (76, 240513), (78, 234346), (84, 217607), (91, 200868), (114, 160342), (133, 137436), (156, 117173), (182, 100434), (228, 80171), (247, 74004), (266, 68718), (273, 66956), (364, 50217), (399, 45812), (494, 37002), (532, 34359), (546, 33478), (741, 24668), (798, 22906), (881, 20748), (988, 18501), (1092, 16739), (1482, 12334), (1596, 11453), (1729, 10572), (1762, 10374), (2643, 6916), (2964, 6167), (3458, 5286), (3524, 5187)]