19805918

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{52957}}^1$

素因数の和:52987

約数の個数: 16

約数和(自身を含む): 34316784

約数和(自身を除く): 14510866

約数列:

[1, 2, 11, 17, 22, 34, 187, 374, 52957, 105914, 582527, 900269, 1165054, 1800538, 9902959, 19805918]

約数ペア:

[(1, 19805918), (2, 9902959), (11, 1800538), (17, 1165054), (22, 900269), (34, 582527), (187, 105914), (374, 52957)]