201990512857

素因数分解:

$7^1\times {\mathrm{691}}^1\times {\mathrm{1823}}^1\times {\mathrm{22907}}^1$

素因数の和:25428

約数の個数: 16

約数和(自身を含む): 231317286912

約数和(自身を除く): 29326774055

約数列:

[1, 7, 691, 1823, 4837, 12761, 22907, 160349, 1259693, 8817851, 15828737, 41759461, 110801159, 292316227, 28855787551, 201990512857]

約数ペア:

[(1, 201990512857), (7, 28855787551), (691, 292316227), (1823, 110801159), (4837, 41759461), (12761, 15828737), (22907, 8817851), (160349, 1259693)]