20201998565

素因数分解:

$5^1\times 7^3\times {\mathrm{11779591}}^1$

素因数の和:11779617

約数の個数: 16

約数和(自身を含む): 28271020800

約数和(自身を除く): 8069022235

約数列:

[1, 5, 7, 35, 49, 245, 343, 1715, 11779591, 58897955, 82457137, 412285685, 577199959, 2885999795, 4040399713, 20201998565]

約数ペア:

[(1, 20201998565), (5, 4040399713), (7, 2885999795), (35, 577199959), (49, 412285685), (245, 82457137), (343, 58897955), (1715, 11779591)]