1638990998

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{523}}^1\times {\mathrm{42349}}^1$

素因数の和:42911

約数の個数: 16

約数和(自身を含む): 2529819600

約数和(自身を除く): 890828602

約数列:

[1, 2, 37, 74, 523, 1046, 19351, 38702, 42349, 84698, 1566913, 3133826, 22148527, 44297054, 819495499, 1638990998]

約数ペア:

[(1, 1638990998), (2, 819495499), (37, 44297054), (74, 22148527), (523, 3133826), (1046, 1566913), (19351, 84698), (38702, 42349)]