20857728

素因数分解:

$2^7\times 3^1\times {\mathrm{29}}^1\times {\mathrm{1873}}^1$

素因数の和:1919

約数の個数: 64

約数和(自身を含む): 57344400

約数和(自身を除く): 36486672

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 29, 32, 48, 58, 64, 87, 96, 116, 128, 174, 192, 232, 348, 384, 464, 696, 928, 1392, 1856, 1873, 2784, 3712, 3746, 5568, 5619, 7492, 11136, 11238, 14984, 22476, 29968, 44952, 54317, 59936, 89904, 108634, 119872, 162951, 179808, 217268, 239744, 325902, 359616, 434536, 651804, 719232, 869072, 1303608, 1738144, 2607216, 3476288, 5214432, 6952576, 10428864, 20857728]

約数ペア:

[(1, 20857728), (2, 10428864), (3, 6952576), (4, 5214432), (6, 3476288), (8, 2607216), (12, 1738144), (16, 1303608), (24, 869072), (29, 719232), (32, 651804), (48, 434536), (58, 359616), (64, 325902), (87, 239744), (96, 217268), (116, 179808), (128, 162951), (174, 119872), (192, 108634), (232, 89904), (348, 59936), (384, 54317), (464, 44952), (696, 29968), (928, 22476), (1392, 14984), (1856, 11238), (1873, 11136), (2784, 7492), (3712, 5619), (3746, 5568)]