20179912

素因数分解:

$2^3\times {\mathrm{643}}^1\times {\mathrm{3923}}^1$

素因数の和:4572

約数の個数: 16

約数和(自身を含む): 37905840

約数和(自身を除く): 17725928

約数列:

[1, 2, 4, 8, 643, 1286, 2572, 3923, 5144, 7846, 15692, 31384, 2522489, 5044978, 10089956, 20179912]

約数ペア:

[(1, 20179912), (2, 10089956), (4, 5044978), (8, 2522489), (643, 31384), (1286, 15692), (2572, 7846), (3923, 5144)]