20834188

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{1361}}^1$

素因数の和:1497

約数の個数: 24

約数和(自身を含む): 37754640

約数和(自身を除く): 16920452

約数列:

[1, 2, 4, 43, 86, 89, 172, 178, 356, 1361, 2722, 3827, 5444, 7654, 15308, 58523, 117046, 121129, 234092, 242258, 484516, 5208547, 10417094, 20834188]

約数ペア:

[(1, 20834188), (2, 10417094), (4, 5208547), (43, 484516), (86, 242258), (89, 234092), (172, 121129), (178, 117046), (356, 58523), (1361, 15308), (2722, 7654), (3827, 5444)]