21139648

素因数分解:

$2^6\times {\mathrm{137}}^1\times {\mathrm{2411}}^1$

素因数の和:2560

約数の個数: 28

約数和(自身を含む): 42272712

約数和(自身を除く): 21133064

約数列:

[1, 2, 4, 8, 16, 32, 64, 137, 274, 548, 1096, 2192, 2411, 4384, 4822, 8768, 9644, 19288, 38576, 77152, 154304, 330307, 660614, 1321228, 2642456, 5284912, 10569824, 21139648]

約数ペア:

[(1, 21139648), (2, 10569824), (4, 5284912), (8, 2642456), (16, 1321228), (32, 660614), (64, 330307), (137, 154304), (274, 77152), (548, 38576), (1096, 19288), (2192, 9644), (2411, 8768), (4384, 4822)]