28993986

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{463}}^1$

素因数の和:556

約数の個数: 72

約数和(自身を含む): 74265984

約数和(自身を除く): 45271998

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 71, 98, 126, 142, 147, 213, 294, 426, 441, 463, 497, 639, 882, 926, 994, 1278, 1389, 1491, 2778, 2982, 3241, 3479, 4167, 4473, 6482, 6958, 8334, 8946, 9723, 10437, 19446, 20874, 22687, 29169, 31311, 32873, 45374, 58338, 62622, 65746, 68061, 98619, 136122, 197238, 204183, 230111, 295857, 408366, 460222, 591714, 690333, 1380666, 1610777, 2070999, 3221554, 4141998, 4832331, 9664662, 14496993, 28993986]

約数ペア:

[(1, 28993986), (2, 14496993), (3, 9664662), (6, 4832331), (7, 4141998), (9, 3221554), (14, 2070999), (18, 1610777), (21, 1380666), (42, 690333), (49, 591714), (63, 460222), (71, 408366), (98, 295857), (126, 230111), (142, 204183), (147, 197238), (213, 136122), (294, 98619), (426, 68061), (441, 65746), (463, 62622), (497, 58338), (639, 45374), (882, 32873), (926, 31311), (994, 29169), (1278, 22687), (1389, 20874), (1491, 19446), (2778, 10437), (2982, 9723), (3241, 8946), (3479, 8334), (4167, 6958), (4473, 6482)]