19700517

素因数分解:

$3^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1\times {\mathrm{277}}^1$

素因数の和:588

約数の個数: 16

約数和(自身を含む): 26705792

約数和(自身を除く): 7005275

約数列:

[1, 3, 151, 157, 277, 453, 471, 831, 23707, 41827, 43489, 71121, 125481, 130467, 6566839, 19700517]

約数ペア:

[(1, 19700517), (3, 6566839), (151, 130467), (157, 125481), (277, 71121), (453, 43489), (471, 41827), (831, 23707)]