18019869

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{20929}}^1$

素因数の和:20980

約数の個数: 16

約数和(自身を含む): 28129920

約数和(自身を除く): 10110051

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 20929, 62787, 146503, 439509, 858089, 2574267, 6006623, 18019869]

約数ペア:

[(1, 18019869), (3, 6006623), (7, 2574267), (21, 858089), (41, 439509), (123, 146503), (287, 62787), (861, 20929)]