19962956

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{29531}}^1$

素因数の和:29561

約数の個数: 18

約数和(自身を含む): 37830492

約数和(自身を除く): 17867536

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 29531, 59062, 118124, 383903, 767806, 1535612, 4990739, 9981478, 19962956]

約数ペア:

[(1, 19962956), (2, 9981478), (4, 4990739), (13, 1535612), (26, 767806), (52, 383903), (169, 118124), (338, 59062), (676, 29531)]