19380123

素因数分解:

$3^2\times 7^1\times {\mathrm{283}}^1\times {\mathrm{1087}}^1$

素因数の和:1383

約数の個数: 24

約数和(自身を含む): 32135168

約数和(自身を除く): 12755045

約数列:

[1, 3, 7, 9, 21, 63, 283, 849, 1087, 1981, 2547, 3261, 5943, 7609, 9783, 17829, 22827, 68481, 307621, 922863, 2153347, 2768589, 6460041, 19380123]

約数ペア:

[(1, 19380123), (3, 6460041), (7, 2768589), (9, 2153347), (21, 922863), (63, 307621), (283, 68481), (849, 22827), (1087, 17829), (1981, 9783), (2547, 7609), (3261, 5943)]