18378206

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{571}}^1$

素因数の和:621

約数の個数: 48

約数和(自身を含む): 36516480

約数和(自身を除く): 18138274

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 77, 121, 133, 154, 209, 242, 266, 418, 571, 847, 1142, 1463, 1694, 2299, 2926, 3997, 4598, 6281, 7994, 10849, 12562, 16093, 21698, 32186, 43967, 69091, 75943, 87934, 119339, 138182, 151886, 238678, 483637, 835373, 967274, 1312729, 1670746, 2625458, 9189103, 18378206]

約数ペア:

[(1, 18378206), (2, 9189103), (7, 2625458), (11, 1670746), (14, 1312729), (19, 967274), (22, 835373), (38, 483637), (77, 238678), (121, 151886), (133, 138182), (154, 119339), (209, 87934), (242, 75943), (266, 69091), (418, 43967), (571, 32186), (847, 21698), (1142, 16093), (1463, 12562), (1694, 10849), (2299, 7994), (2926, 6281), (3997, 4598)]