21337856

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{4903}}^1$

素因数の和:4936

約数の個数: 36

約数和(自身を含む): 45106992

約数和(自身を除く): 23769136

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 544, 1088, 2176, 4352, 4903, 9806, 19612, 39224, 78448, 83351, 156896, 166702, 313792, 333404, 627584, 666808, 1255168, 1333616, 2667232, 5334464, 10668928, 21337856]

約数ペア:

[(1, 21337856), (2, 10668928), (4, 5334464), (8, 2667232), (16, 1333616), (17, 1255168), (32, 666808), (34, 627584), (64, 333404), (68, 313792), (128, 166702), (136, 156896), (256, 83351), (272, 78448), (544, 39224), (1088, 19612), (2176, 9806), (4352, 4903)]