20490784

素因数分解:

$2^5\times {\mathrm{241}}^1\times {\mathrm{2657}}^1$

素因数の和:2908

約数の個数: 24

約数和(自身を含む): 40523868

約数和(自身を除く): 20033084

約数列:

[1, 2, 4, 8, 16, 32, 241, 482, 964, 1928, 2657, 3856, 5314, 7712, 10628, 21256, 42512, 85024, 640337, 1280674, 2561348, 5122696, 10245392, 20490784]

約数ペア:

[(1, 20490784), (2, 10245392), (4, 5122696), (8, 2561348), (16, 1280674), (32, 640337), (241, 85024), (482, 42512), (964, 21256), (1928, 10628), (2657, 7712), (3856, 5314)]