31128251

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{21277}}^1$

素因数の和:21314

約数の個数: 16

約数和(自身を含む): 40853760

約数和(自身を除く): 9725509

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 21277, 148939, 234047, 404263, 1638329, 2829841, 4446893, 31128251]

約数ペア:

[(1, 31128251), (7, 4446893), (11, 2829841), (19, 1638329), (77, 404263), (133, 234047), (209, 148939), (1463, 21277)]