11981495

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{4349}}^1$

素因数の和:4402

約数の個数: 16

約数和(自身を含む): 15660000

約数和(自身を除く): 3678505

約数列:

[1, 5, 19, 29, 95, 145, 551, 2755, 4349, 21745, 82631, 126121, 413155, 630605, 2396299, 11981495]

約数ペア:

[(1, 11981495), (5, 2396299), (19, 630605), (29, 413155), (95, 126121), (145, 82631), (551, 21745), (2755, 4349)]