19213772

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{90631}}^1$

素因数の和:90688

約数の個数: 12

約数和(自身を含む): 34258896

約数和(自身を除く): 15045124

約数列:

[1, 2, 4, 53, 106, 212, 90631, 181262, 362524, 4803443, 9606886, 19213772]

約数ペア:

[(1, 19213772), (2, 9606886), (4, 4803443), (53, 362524), (106, 181262), (212, 90631)]