19144978

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{1657}}^1$

素因数の和:1821

約数の個数: 16

約数和(自身を含む): 29545560

約数和(自身を除く): 10400582

約数列:

[1, 2, 53, 106, 109, 218, 1657, 3314, 5777, 11554, 87821, 175642, 180613, 361226, 9572489, 19144978]

約数ペア:

[(1, 19144978), (2, 9572489), (53, 361226), (106, 180613), (109, 175642), (218, 87821), (1657, 11554), (3314, 5777)]