19807994

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{383}}^1\times {\mathrm{1361}}^1$

素因数の和:1765

約数の個数: 16

約数和(自身を含む): 31380480

約数和(自身を除く): 11572486

約数列:

[1, 2, 19, 38, 383, 766, 1361, 2722, 7277, 14554, 25859, 51718, 521263, 1042526, 9903997, 19807994]

約数ペア:

[(1, 19807994), (2, 9903997), (19, 1042526), (38, 521263), (383, 51718), (766, 25859), (1361, 14554), (2722, 7277)]