20863984

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{17863}}^1$

素因数の和:17944

約数の個数: 20

約数和(自身を含む): 40980016

約数和(自身を除く): 20116032

約数列:

[1, 2, 4, 8, 16, 73, 146, 292, 584, 1168, 17863, 35726, 71452, 142904, 285808, 1303999, 2607998, 5215996, 10431992, 20863984]

約数ペア:

[(1, 20863984), (2, 10431992), (4, 5215996), (8, 2607998), (16, 1303999), (73, 285808), (146, 142904), (292, 71452), (584, 35726), (1168, 17863)]