20855667

素因数分解:

$3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{6577}}^1$

素因数の和:6738

約数の個数: 16

約数和(自身を含む): 31995392

約数和(自身を除く): 11139725

約数列:

[1, 3, 7, 21, 151, 453, 1057, 3171, 6577, 19731, 46039, 138117, 993127, 2979381, 6951889, 20855667]

約数ペア:

[(1, 20855667), (3, 6951889), (7, 2979381), (21, 993127), (151, 138117), (453, 46039), (1057, 19731), (3171, 6577)]