21470045

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{307}}^1$

素因数の和:580

約数の個数: 16

約数和(自身を含む): 26345088

約数和(自身を除く): 4875043

約数列:

[1, 5, 71, 197, 307, 355, 985, 1535, 13987, 21797, 60479, 69935, 108985, 302395, 4294009, 21470045]

約数ペア:

[(1, 21470045), (5, 4294009), (71, 302395), (197, 108985), (307, 69935), (355, 60479), (985, 21797), (1535, 13987)]