19510019188

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{40309957}}^1$

素因数の和:40309983

約数の個数: 18

約数和(自身を含む): 37528570898

約数和(自身を除く): 18018551710

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 40309957, 80619914, 161239828, 443409527, 886819054, 1773638108, 4877504797, 9755009594, 19510019188]

約数ペア:

[(1, 19510019188), (2, 9755009594), (4, 4877504797), (11, 1773638108), (22, 886819054), (44, 443409527), (121, 161239828), (242, 80619914), (484, 40309957)]