188865405

素因数分解:

$3^3\times 5^1\times {\mathrm{1399003}}^1$

素因数の和:1399017

約数の個数: 16

約数和(自身を含む): 335760960

約数和(自身を除く): 146895555

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1399003, 4197009, 6995015, 12591027, 20985045, 37773081, 62955135, 188865405]

約数ペア:

[(1, 188865405), (3, 62955135), (5, 37773081), (9, 20985045), (15, 12591027), (27, 6995015), (45, 4197009), (135, 1399003)]