21012866

素因数分解:

$2^1\times 7^3\times {\mathrm{30631}}^1$

素因数の和:30654

約数の個数: 16

約数和(自身を含む): 36758400

約数和(自身を除く): 15745534

約数列:

[1, 2, 7, 14, 49, 98, 343, 686, 30631, 61262, 214417, 428834, 1500919, 3001838, 10506433, 21012866]

約数ペア:

[(1, 21012866), (2, 10506433), (7, 3001838), (14, 1500919), (49, 428834), (98, 214417), (343, 61262), (686, 30631)]