21170212

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{463}}^1$

素因数の和:568

約数の個数: 48

約数和(自身を含む): 44900352

約数和(自身を除く): 23730140

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 71, 92, 142, 161, 284, 322, 463, 497, 644, 926, 994, 1633, 1852, 1988, 3241, 3266, 6482, 6532, 10649, 11431, 12964, 21298, 22862, 32873, 42596, 45724, 65746, 74543, 131492, 149086, 230111, 298172, 460222, 756079, 920444, 1512158, 3024316, 5292553, 10585106, 21170212]

約数ペア:

[(1, 21170212), (2, 10585106), (4, 5292553), (7, 3024316), (14, 1512158), (23, 920444), (28, 756079), (46, 460222), (71, 298172), (92, 230111), (142, 149086), (161, 131492), (284, 74543), (322, 65746), (463, 45724), (497, 42596), (644, 32873), (926, 22862), (994, 21298), (1633, 12964), (1852, 11431), (1988, 10649), (3241, 6532), (3266, 6482)]