20015247

素因数分解:

$3^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{3517}}^1$

素因数の和:3798

約数の個数: 16

約数和(自身を含む): 30620672

約数和(自身を除く): 10605425

約数列:

[1, 3, 7, 21, 271, 813, 1897, 3517, 5691, 10551, 24619, 73857, 953107, 2859321, 6671749, 20015247]

約数ペア:

[(1, 20015247), (3, 6671749), (7, 2859321), (21, 953107), (271, 73857), (813, 24619), (1897, 10551), (3517, 5691)]