21127696

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{69499}}^1$

素因数の和:69526

約数の個数: 20

約数和(自身を含む): 43090000

約数和(自身を除く): 21962304

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 69499, 138998, 277996, 555992, 1111984, 1320481, 2640962, 5281924, 10563848, 21127696]

約数ペア:

[(1, 21127696), (2, 10563848), (4, 5281924), (8, 2640962), (16, 1320481), (19, 1111984), (38, 555992), (76, 277996), (152, 138998), (304, 69499)]