21298046

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{859}}^1$

素因数の和:909

約数の個数: 48

約数和(自身を含む): 42353280

約数和(自身を除く): 21055234

約数列:

[1, 2, 7, 11, 14, 22, 23, 46, 49, 77, 98, 154, 161, 253, 322, 506, 539, 859, 1078, 1127, 1718, 1771, 2254, 3542, 6013, 9449, 12026, 12397, 18898, 19757, 24794, 39514, 42091, 66143, 84182, 132286, 138299, 217327, 276598, 434654, 463001, 926002, 968093, 1521289, 1936186, 3042578, 10649023, 21298046]

約数ペア:

[(1, 21298046), (2, 10649023), (7, 3042578), (11, 1936186), (14, 1521289), (22, 968093), (23, 926002), (46, 463001), (49, 434654), (77, 276598), (98, 217327), (154, 138299), (161, 132286), (253, 84182), (322, 66143), (506, 42091), (539, 39514), (859, 24794), (1078, 19757), (1127, 18898), (1718, 12397), (1771, 12026), (2254, 9449), (3542, 6013)]