19858223

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{11213}}^1$

素因数の和:11254

約数の個数: 16

約数和(自身を含む): 25837056

約数和(自身を除く): 5978833

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 11213, 78491, 123343, 257899, 863401, 1805293, 2836889, 19858223]

約数ペア:

[(1, 19858223), (7, 2836889), (11, 1805293), (23, 863401), (77, 257899), (161, 123343), (253, 78491), (1771, 11213)]