21143912

素因数分解:

$2^3\times {\mathrm{1129}}^1\times {\mathrm{2341}}^1$

素因数の和:3476

約数の個数: 16

約数和(自身を含む): 39696900

約数和(自身を除く): 18552988

約数列:

[1, 2, 4, 8, 1129, 2258, 2341, 4516, 4682, 9032, 9364, 18728, 2642989, 5285978, 10571956, 21143912]

約数ペア:

[(1, 21143912), (2, 10571956), (4, 5285978), (8, 2642989), (1129, 18728), (2258, 9364), (2341, 9032), (4516, 4682)]