19937884624

素因数分解:

$2^4\times 7^1\times {\mathrm{173}}^1\times {\mathrm{1028999}}^1$

素因数の和:1029187

約数の個数: 40

約数和(自身を含む): 44403408000

約数和(自身を除く): 24465523376

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 173, 346, 692, 1211, 1384, 2422, 2768, 4844, 9688, 19376, 1028999, 2057998, 4115996, 7202993, 8231992, 14405986, 16463984, 28811972, 57623944, 115247888, 178016827, 356033654, 712067308, 1246117789, 1424134616, 2492235578, 2848269232, 4984471156, 9968942312, 19937884624]

約数ペア:

[(1, 19937884624), (2, 9968942312), (4, 4984471156), (7, 2848269232), (8, 2492235578), (14, 1424134616), (16, 1246117789), (28, 712067308), (56, 356033654), (112, 178016827), (173, 115247888), (346, 57623944), (692, 28811972), (1211, 16463984), (1384, 14405986), (2422, 8231992), (2768, 7202993), (4844, 4115996), (9688, 2057998), (19376, 1028999)]