20986371

素因数分解:

$3^4\times 7^1\times {\mathrm{37013}}^1$

素因数の和:37032

約数の個数: 20

約数和(自身を含む): 35829552

約数和(自身を除く): 14843181

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 37013, 111039, 259091, 333117, 777273, 999351, 2331819, 2998053, 6995457, 20986371]

約数ペア:

[(1, 20986371), (3, 6995457), (7, 2998053), (9, 2331819), (21, 999351), (27, 777273), (63, 333117), (81, 259091), (189, 111039), (567, 37013)]