18867573

素因数分解:

$3^4\times {\mathrm{109}}^1\times {\mathrm{2137}}^1$

素因数の和:2258

約数の個数: 20

約数和(自身を含む): 28456780

約数和(自身を除く): 9589207

約数列:

[1, 3, 9, 27, 81, 109, 327, 981, 2137, 2943, 6411, 8829, 19233, 57699, 173097, 232933, 698799, 2096397, 6289191, 18867573]

約数ペア:

[(1, 18867573), (3, 6289191), (9, 2096397), (27, 698799), (81, 232933), (109, 173097), (327, 57699), (981, 19233), (2137, 8829), (2943, 6411)]