20986834

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{439}}^1$

素因数の和:546

約数の個数: 32

約数和(自身を含む): 35925120

約数和(自身を除く): 14938286

約数列:

[1, 2, 11, 22, 41, 53, 82, 106, 439, 451, 583, 878, 902, 1166, 2173, 4346, 4829, 9658, 17999, 23267, 23903, 35998, 46534, 47806, 197989, 255937, 395978, 511874, 953947, 1907894, 10493417, 20986834]

約数ペア:

[(1, 20986834), (2, 10493417), (11, 1907894), (22, 953947), (41, 511874), (53, 395978), (82, 255937), (106, 197989), (439, 47806), (451, 46534), (583, 35998), (878, 23903), (902, 23267), (1166, 17999), (2173, 9658), (4346, 4829)]