20939565

素因数分解:

$3^1\times 5^1\times {\mathrm{739}}^1\times {\mathrm{1889}}^1$

素因数の和:2636

約数の個数: 16

約数和(自身を含む): 33566400

約数和(自身を除く): 12626835

約数列:

[1, 3, 5, 15, 739, 1889, 2217, 3695, 5667, 9445, 11085, 28335, 1395971, 4187913, 6979855, 20939565]

約数ペア:

[(1, 20939565), (3, 6979855), (5, 4187913), (15, 1395971), (739, 28335), (1889, 11085), (2217, 9445), (3695, 5667)]