19770321

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{277}}^1\times {\mathrm{643}}^1$

素因数の和:960

約数の個数: 16

約数和(自身を含む): 27212864

約数和(自身を除く): 7442543

約数列:

[1, 3, 37, 111, 277, 643, 831, 1929, 10249, 23791, 30747, 71373, 178111, 534333, 6590107, 19770321]

約数ペア:

[(1, 19770321), (3, 6590107), (37, 534333), (111, 178111), (277, 71373), (643, 30747), (831, 23791), (1929, 10249)]