21107176

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{138863}}^1$

素因数の和:138888

約数の個数: 16

約数和(自身を含む): 41659200

約数和(自身を除く): 20552024

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 138863, 277726, 555452, 1110904, 2638397, 5276794, 10553588, 21107176]

約数ペア:

[(1, 21107176), (2, 10553588), (4, 5276794), (8, 2638397), (19, 1110904), (38, 555452), (76, 277726), (152, 138863)]