21379673

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^2\times {\mathrm{97}}^1$

素因数の和:201

約数の個数: 24

約数和(自身を含む): 26474112

約数和(自身を除く): 5094439

約数列:

[1, 7, 23, 37, 97, 161, 259, 679, 851, 1369, 2231, 3589, 5957, 9583, 15617, 25123, 31487, 82547, 132793, 220409, 577829, 929551, 3054239, 21379673]

約数ペア:

[(1, 21379673), (7, 3054239), (23, 929551), (37, 577829), (97, 220409), (161, 132793), (259, 82547), (679, 31487), (851, 25123), (1369, 15617), (2231, 9583), (3589, 5957)]