19789989

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{2243}}^1$

素因数の和:2436

約数の個数: 16

約数和(自身を含む): 28112832

約数和(自身を除く): 8322843

約数列:

[1, 3, 17, 51, 173, 519, 2243, 2941, 6729, 8823, 38131, 114393, 388039, 1164117, 6596663, 19789989]

約数ペア:

[(1, 19789989), (3, 6596663), (17, 1164117), (51, 388039), (173, 114393), (519, 38131), (2243, 8823), (2941, 6729)]