7881426

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{881}}^1$

素因数の和:967

約数の個数: 48

約数和(自身を含む): 19813248

約数和(自身を除く): 11931822

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 71, 126, 142, 213, 426, 497, 639, 881, 994, 1278, 1491, 1762, 2643, 2982, 4473, 5286, 6167, 7929, 8946, 12334, 15858, 18501, 37002, 55503, 62551, 111006, 125102, 187653, 375306, 437857, 562959, 875714, 1125918, 1313571, 2627142, 3940713, 7881426]

約数ペア:

[(1, 7881426), (2, 3940713), (3, 2627142), (6, 1313571), (7, 1125918), (9, 875714), (14, 562959), (18, 437857), (21, 375306), (42, 187653), (63, 125102), (71, 111006), (126, 62551), (142, 55503), (213, 37002), (426, 18501), (497, 15858), (639, 12334), (881, 8946), (994, 7929), (1278, 6167), (1491, 5286), (1762, 4473), (2643, 2982)]