21337088

素因数分解:

$2^{10}\times {\mathrm{67}}^1\times {\mathrm{311}}^1$

素因数の和:398

約数の個数: 44

約数和(自身を含む): 43429152

約数和(自身を除く): 22092064

約数列:

[1, 2, 4, 8, 16, 32, 64, 67, 128, 134, 256, 268, 311, 512, 536, 622, 1024, 1072, 1244, 2144, 2488, 4288, 4976, 8576, 9952, 17152, 19904, 20837, 34304, 39808, 41674, 68608, 79616, 83348, 159232, 166696, 318464, 333392, 666784, 1333568, 2667136, 5334272, 10668544, 21337088]

約数ペア:

[(1, 21337088), (2, 10668544), (4, 5334272), (8, 2667136), (16, 1333568), (32, 666784), (64, 333392), (67, 318464), (128, 166696), (134, 159232), (256, 83348), (268, 79616), (311, 68608), (512, 41674), (536, 39808), (622, 34304), (1024, 20837), (1072, 19904), (1244, 17152), (2144, 9952), (2488, 8576), (4288, 4976)]