20199009

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{601}}^1\times {\mathrm{659}}^1$

素因数の和:1280

約数の個数: 16

約数和(自身を含む): 28607040

約数和(自身を除く): 8408031

約数列:

[1, 3, 17, 51, 601, 659, 1803, 1977, 10217, 11203, 30651, 33609, 396059, 1188177, 6733003, 20199009]

約数ペア:

[(1, 20199009), (3, 6733003), (17, 1188177), (51, 396059), (601, 33609), (659, 30651), (1803, 11203), (1977, 10217)]