212116563

素因数分解:

$3^4\times {\mathrm{239}}^1\times {\mathrm{10957}}^1$

素因数の和:11208

約数の個数: 20

約数和(自身を含む): 318220320

約数和(自身を除く): 106103757

約数列:

[1, 3, 9, 27, 81, 239, 717, 2151, 6453, 10957, 19359, 32871, 98613, 295839, 887517, 2618723, 7856169, 23568507, 70705521, 212116563]

約数ペア:

[(1, 212116563), (3, 70705521), (9, 23568507), (27, 7856169), (81, 2618723), (239, 887517), (717, 295839), (2151, 98613), (6453, 32871), (10957, 19359)]