20518442

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{77137}}^1$

素因数の和:77165

約数の個数: 16

約数和(自身を含む): 37026240

約数和(自身を除く): 16507798

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 77137, 154274, 539959, 1079918, 1465603, 2931206, 10259221, 20518442]

約数ペア:

[(1, 20518442), (2, 10259221), (7, 2931206), (14, 1465603), (19, 1079918), (38, 539959), (133, 154274), (266, 77137)]