19801166

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{11689}}^1$

素因数の和:11720

約数の個数: 24

約数和(自身を含む): 37314480

約数和(自身を除く): 17513314

約数列:

[1, 2, 7, 11, 14, 22, 77, 121, 154, 242, 847, 1694, 11689, 23378, 81823, 128579, 163646, 257158, 900053, 1414369, 1800106, 2828738, 9900583, 19801166]

約数ペア:

[(1, 19801166), (2, 9900583), (7, 2828738), (11, 1800106), (14, 1414369), (22, 900053), (77, 257158), (121, 163646), (154, 128579), (242, 81823), (847, 23378), (1694, 11689)]