21487384

素因数分解:

$2^3\times {\mathrm{127}}^1\times {\mathrm{21149}}^1$

素因数の和:21282

約数の個数: 16

約数和(自身を含む): 40608000

約数和(自身を除く): 19120616

約数列:

[1, 2, 4, 8, 127, 254, 508, 1016, 21149, 42298, 84596, 169192, 2685923, 5371846, 10743692, 21487384]

約数ペア:

[(1, 21487384), (2, 10743692), (4, 5371846), (8, 2685923), (127, 169192), (254, 84596), (508, 42298), (1016, 21149)]