19665851

素因数分解:

${\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1$

素因数の和:322

約数の個数: 16

約数和(自身を含む): 21212928

約数和(自身を除く): 1547077

約数列:

[1, 23, 61, 107, 131, 1403, 2461, 3013, 6527, 7991, 14017, 150121, 183793, 322391, 855037, 19665851]

約数ペア:

[(1, 19665851), (23, 855037), (61, 322391), (107, 183793), (131, 150121), (1403, 14017), (2461, 7991), (3013, 6527)]