19896919

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2741}}^1$

素因数の和:2826

約数の個数: 16

約数和(自身を含む): 24480576

約数和(自身を除く): 4583657

約数列:

[1, 7, 17, 61, 119, 427, 1037, 2741, 7259, 19187, 46597, 167201, 326179, 1170407, 2842417, 19896919]

約数ペア:

[(1, 19896919), (7, 2842417), (17, 1170407), (61, 326179), (119, 167201), (427, 46597), (1037, 19187), (2741, 7259)]