21447376

素因数分解:

$2^4\times {\mathrm{347}}^1\times {\mathrm{3863}}^1$

素因数の和:4218

約数の個数: 20

約数和(自身を含む): 41684832

約数和(自身を除く): 20237456

約数列:

[1, 2, 4, 8, 16, 347, 694, 1388, 2776, 3863, 5552, 7726, 15452, 30904, 61808, 1340461, 2680922, 5361844, 10723688, 21447376]

約数ペア:

[(1, 21447376), (2, 10723688), (4, 5361844), (8, 2680922), (16, 1340461), (347, 61808), (694, 30904), (1388, 15452), (2776, 7726), (3863, 5552)]