20719767

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1\times {\mathrm{863}}^1$

素因数の和:1070

約数の個数: 16

約数和(自身を含む): 28366848

約数和(自身を除く): 7647081

約数列:

[1, 3, 53, 151, 159, 453, 863, 2589, 8003, 24009, 45739, 130313, 137217, 390939, 6906589, 20719767]

約数ペア:

[(1, 20719767), (3, 6906589), (53, 390939), (151, 137217), (159, 130313), (453, 45739), (863, 24009), (2589, 8003)]