20906816

素因数分解:

$2^6\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2029}}^1$

素因数の和:2071

約数の個数: 56

約数和(自身を含む): 49499520

約数和(自身を除く): 28592704

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 32, 46, 56, 64, 92, 112, 161, 184, 224, 322, 368, 448, 644, 736, 1288, 1472, 2029, 2576, 4058, 5152, 8116, 10304, 14203, 16232, 28406, 32464, 46667, 56812, 64928, 93334, 113624, 129856, 186668, 227248, 326669, 373336, 454496, 653338, 746672, 908992, 1306676, 1493344, 2613352, 2986688, 5226704, 10453408, 20906816]

約数ペア:

[(1, 20906816), (2, 10453408), (4, 5226704), (7, 2986688), (8, 2613352), (14, 1493344), (16, 1306676), (23, 908992), (28, 746672), (32, 653338), (46, 454496), (56, 373336), (64, 326669), (92, 227248), (112, 186668), (161, 129856), (184, 113624), (224, 93334), (322, 64928), (368, 56812), (448, 46667), (644, 32464), (736, 28406), (1288, 16232), (1472, 14203), (2029, 10304), (2576, 8116), (4058, 5152)]