19877242

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{18439}}^1$

素因数の和:18466

約数の個数: 24

約数和(自身を含む): 37838880

約数和(自身を除く): 17961638

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 18439, 36878, 129073, 202829, 258146, 405658, 903511, 1419803, 1807022, 2839606, 9938621, 19877242]

約数ペア:

[(1, 19877242), (2, 9938621), (7, 2839606), (11, 1807022), (14, 1419803), (22, 903511), (49, 405658), (77, 258146), (98, 202829), (154, 129073), (539, 36878), (1078, 18439)]