19995804

素因数分解:

$2^2\times 3^2\times {\mathrm{555439}}^1$

素因数の和:555449

約数の個数: 18

約数和(自身を含む): 50545040

約数和(自身を除く): 30549236

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 555439, 1110878, 1666317, 2221756, 3332634, 4998951, 6665268, 9997902, 19995804]

約数ペア:

[(1, 19995804), (2, 9997902), (3, 6665268), (4, 4998951), (6, 3332634), (9, 2221756), (12, 1666317), (18, 1110878), (36, 555439)]