28209165

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{40013}}^1$

素因数の和:40068

約数の個数: 16

約数和(自身を含む): 46096128

約数和(自身を除く): 17886963

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 40013, 120039, 200065, 600195, 1880611, 5641833, 9403055, 28209165]

約数ペア:

[(1, 28209165), (3, 9403055), (5, 5641833), (15, 1880611), (47, 600195), (141, 200065), (235, 120039), (705, 40013)]