21355916

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{1217}}^1$

素因数の和:1369

約数の個数: 24

約数和(自身を含む): 38673936

約数和(自身を除く): 17318020

約数列:

[1, 2, 4, 41, 82, 107, 164, 214, 428, 1217, 2434, 4387, 4868, 8774, 17548, 49897, 99794, 130219, 199588, 260438, 520876, 5338979, 10677958, 21355916]

約数ペア:

[(1, 21355916), (2, 10677958), (4, 5338979), (41, 520876), (82, 260438), (107, 199588), (164, 130219), (214, 99794), (428, 49897), (1217, 17548), (2434, 8774), (4387, 4868)]