19788349

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1381}}^1$

素因数の和:1500

約数の個数: 16

約数和(自身を含む): 23880960

約数和(自身を除く): 4092611

約数列:

[1, 7, 23, 89, 161, 623, 1381, 2047, 9667, 14329, 31763, 122909, 222341, 860363, 2826907, 19788349]

約数ペア:

[(1, 19788349), (7, 2826907), (23, 860363), (89, 222341), (161, 122909), (623, 31763), (1381, 14329), (2047, 9667)]