21084564

素因数分解:

$2^2\times 3^1\times {\mathrm{107}}^1\times {\mathrm{16421}}^1$

素因数の和:16535

約数の個数: 24

約数和(自身を含む): 49660128

約数和(自身を除く): 28575564

約数列:

[1, 2, 3, 4, 6, 12, 107, 214, 321, 428, 642, 1284, 16421, 32842, 49263, 65684, 98526, 197052, 1757047, 3514094, 5271141, 7028188, 10542282, 21084564]

約数ペア:

[(1, 21084564), (2, 10542282), (3, 7028188), (4, 5271141), (6, 3514094), (12, 1757047), (107, 197052), (214, 98526), (321, 65684), (428, 49263), (642, 32842), (1284, 16421)]