19519619

素因数分解:

$7^1\times {\mathrm{59}}^1\times {\mathrm{151}}^1\times {\mathrm{313}}^1$

素因数の和:530

約数の個数: 16

約数和(自身を含む): 22909440

約数和(自身を除く): 3389821

約数列:

[1, 7, 59, 151, 313, 413, 1057, 2191, 8909, 18467, 47263, 62363, 129269, 330841, 2788517, 19519619]

約数ペア:

[(1, 19519619), (7, 2788517), (59, 330841), (151, 129269), (313, 62363), (413, 47263), (1057, 18467), (2191, 8909)]