20859904

素因数分解:

$2^{10}\times {\mathrm{13}}^1\times {\mathrm{1567}}^1$

素因数の和:1600

約数の個数: 44

約数和(自身を含む): 44935744

約数和(自身を除く): 24075840

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1024, 1567, 1664, 3134, 3328, 6268, 6656, 12536, 13312, 20371, 25072, 40742, 50144, 81484, 100288, 162968, 200576, 325936, 401152, 651872, 802304, 1303744, 1604608, 2607488, 5214976, 10429952, 20859904]

約数ペア:

[(1, 20859904), (2, 10429952), (4, 5214976), (8, 2607488), (13, 1604608), (16, 1303744), (26, 802304), (32, 651872), (52, 401152), (64, 325936), (104, 200576), (128, 162968), (208, 100288), (256, 81484), (416, 50144), (512, 40742), (832, 25072), (1024, 20371), (1567, 13312), (1664, 12536), (3134, 6656), (3328, 6268)]