18022984

素因数分解:

$2^3\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1999}}^1$

素因数の和:2042

約数の個数: 48

約数和(自身を含む): 41040000

約数和(自身を除く): 23017016

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 49, 56, 92, 98, 161, 184, 196, 322, 392, 644, 1127, 1288, 1999, 2254, 3998, 4508, 7996, 9016, 13993, 15992, 27986, 45977, 55972, 91954, 97951, 111944, 183908, 195902, 321839, 367816, 391804, 643678, 783608, 1287356, 2252873, 2574712, 4505746, 9011492, 18022984]

約数ペア:

[(1, 18022984), (2, 9011492), (4, 4505746), (7, 2574712), (8, 2252873), (14, 1287356), (23, 783608), (28, 643678), (46, 391804), (49, 367816), (56, 321839), (92, 195902), (98, 183908), (161, 111944), (184, 97951), (196, 91954), (322, 55972), (392, 45977), (644, 27986), (1127, 15992), (1288, 13993), (1999, 9016), (2254, 7996), (3998, 4508)]