21085582

素因数分解:

$2^1\times 7^4\times {\mathrm{4391}}^1$

素因数の和:4421

約数の個数: 20

約数和(自身を含む): 36905976

約数和(自身を除く): 15820394

約数列:

[1, 2, 7, 14, 49, 98, 343, 686, 2401, 4391, 4802, 8782, 30737, 61474, 215159, 430318, 1506113, 3012226, 10542791, 21085582]

約数ペア:

[(1, 21085582), (2, 10542791), (7, 3012226), (14, 1506113), (49, 430318), (98, 215159), (343, 61474), (686, 30737), (2401, 8782), (4391, 4802)]