18942976

素因数分解:

$2^{10}\times {\mathrm{13}}^1\times {\mathrm{1423}}^1$

素因数の和:1456

約数の個数: 44

約数和(自身を含む): 40808992

約数和(自身を除く): 21866016

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1024, 1423, 1664, 2846, 3328, 5692, 6656, 11384, 13312, 18499, 22768, 36998, 45536, 73996, 91072, 147992, 182144, 295984, 364288, 591968, 728576, 1183936, 1457152, 2367872, 4735744, 9471488, 18942976]

約数ペア:

[(1, 18942976), (2, 9471488), (4, 4735744), (8, 2367872), (13, 1457152), (16, 1183936), (26, 728576), (32, 591968), (52, 364288), (64, 295984), (104, 182144), (128, 147992), (208, 91072), (256, 73996), (416, 45536), (512, 36998), (832, 22768), (1024, 18499), (1423, 13312), (1664, 11384), (2846, 6656), (3328, 5692)]