21951292

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:346

約数の個数: 48

約数和(自身を含む): 44352000

約数和(自身を除く): 22400708

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 109, 199, 218, 253, 398, 436, 506, 796, 1012, 1199, 2189, 2398, 2507, 4378, 4577, 4796, 5014, 8756, 9154, 10028, 18308, 21691, 27577, 43382, 50347, 55154, 86764, 100694, 110308, 201388, 238601, 477202, 498893, 954404, 997786, 1995572, 5487823, 10975646, 21951292]

約数ペア:

[(1, 21951292), (2, 10975646), (4, 5487823), (11, 1995572), (22, 997786), (23, 954404), (44, 498893), (46, 477202), (92, 238601), (109, 201388), (199, 110308), (218, 100694), (253, 86764), (398, 55154), (436, 50347), (506, 43382), (796, 27577), (1012, 21691), (1199, 18308), (2189, 10028), (2398, 9154), (2507, 8756), (4378, 5014), (4577, 4796)]