21526141

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{719}}^1$

素因数の和:793

約数の個数: 24

約数和(自身を含む): 27578880

約数和(自身を除く): 6052739

約数列:

[1, 7, 13, 47, 49, 91, 329, 611, 637, 719, 2303, 4277, 5033, 9347, 29939, 33793, 35231, 65429, 236551, 439309, 458003, 1655857, 3075163, 21526141]

約数ペア:

[(1, 21526141), (7, 3075163), (13, 1655857), (47, 458003), (49, 439309), (91, 236551), (329, 65429), (611, 35231), (637, 33793), (719, 29939), (2303, 9347), (4277, 5033)]