1980018

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{991}}^1$

素因数の和:1039

約数の個数: 32

約数和(自身を含む): 4523520

約数和(自身を除く): 2543502

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 111, 222, 333, 666, 991, 999, 1982, 1998, 2973, 5946, 8919, 17838, 26757, 36667, 53514, 73334, 110001, 220002, 330003, 660006, 990009, 1980018]

約数ペア:

[(1, 1980018), (2, 990009), (3, 660006), (6, 330003), (9, 220002), (18, 110001), (27, 73334), (37, 53514), (54, 36667), (74, 26757), (111, 17838), (222, 8919), (333, 5946), (666, 2973), (991, 1998), (999, 1982)]