21472256

素因数分解:

$2^{10}\times {\mathrm{13}}^1\times {\mathrm{1613}}^1$

素因数の和:1646

約数の個数: 44

約数和(自身を含む): 46254012

約数和(自身を除く): 24781756

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1024, 1613, 1664, 3226, 3328, 6452, 6656, 12904, 13312, 20969, 25808, 41938, 51616, 83876, 103232, 167752, 206464, 335504, 412928, 671008, 825856, 1342016, 1651712, 2684032, 5368064, 10736128, 21472256]

約数ペア:

[(1, 21472256), (2, 10736128), (4, 5368064), (8, 2684032), (13, 1651712), (16, 1342016), (26, 825856), (32, 671008), (52, 412928), (64, 335504), (104, 206464), (128, 167752), (208, 103232), (256, 83876), (416, 51616), (512, 41938), (832, 25808), (1024, 20969), (1613, 13312), (1664, 12904), (3226, 6656), (3328, 6452)]