20347789

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{5393}}^1$

素因数の和:5425

約数の個数: 16

約数和(自身を含む): 25891200

約数和(自身を除く): 5543411

約数列:

[1, 7, 11, 49, 77, 343, 539, 3773, 5393, 37751, 59323, 264257, 415261, 1849799, 2906827, 20347789]

約数ペア:

[(1, 20347789), (7, 2906827), (11, 1849799), (49, 415261), (77, 264257), (343, 59323), (539, 37751), (3773, 5393)]