20851874

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{2551}}^1$

素因数の和:2681

約数の個数: 16

約数和(自身を含む): 32277696

約数和(自身を除く): 11425822

約数列:

[1, 2, 61, 67, 122, 134, 2551, 4087, 5102, 8174, 155611, 170917, 311222, 341834, 10425937, 20851874]

約数ペア:

[(1, 20851874), (2, 10425937), (61, 341834), (67, 311222), (122, 170917), (134, 155611), (2551, 8174), (4087, 5102)]