21525232

素因数分解:

$2^4\times {\mathrm{673}}^1\times {\mathrm{1999}}^1$

素因数の和:2680

約数の個数: 20

約数和(自身を含む): 41788000

約数和(自身を除く): 20262768

約数列:

[1, 2, 4, 8, 16, 673, 1346, 1999, 2692, 3998, 5384, 7996, 10768, 15992, 31984, 1345327, 2690654, 5381308, 10762616, 21525232]

約数ペア:

[(1, 21525232), (2, 10762616), (4, 5381308), (8, 2690654), (16, 1345327), (673, 31984), (1346, 15992), (1999, 10768), (2692, 7996), (3998, 5384)]