21813134

素因数分解:

$2^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{2161}}^1$

素因数の和:2280

約数の個数: 24

約数和(自身を含む): 38449008

約数和(自身を除く): 16635874

約数列:

[1, 2, 7, 14, 49, 98, 103, 206, 721, 1442, 2161, 4322, 5047, 10094, 15127, 30254, 105889, 211778, 222583, 445166, 1558081, 3116162, 10906567, 21813134]

約数ペア:

[(1, 21813134), (2, 10906567), (7, 3116162), (14, 1558081), (49, 445166), (98, 222583), (103, 211778), (206, 105889), (721, 30254), (1442, 15127), (2161, 10094), (4322, 5047)]