20064779

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{2557}}^1$

素因数の和:2642

約数の個数: 16

約数和(自身を含む): 24556800

約数和(自身を除く): 4492021

約数列:

[1, 7, 19, 59, 133, 413, 1121, 2557, 7847, 17899, 48583, 150863, 340081, 1056041, 2866397, 20064779]

約数ペア:

[(1, 20064779), (7, 2866397), (19, 1056041), (59, 340081), (133, 150863), (413, 48583), (1121, 17899), (2557, 7847)]