19720878

素因数分解:

$2^1\times 3^1\times {\mathrm{313}}^1\times {\mathrm{10501}}^1$

素因数の和:10819

約数の個数: 16

約数和(自身を含む): 39571536

約数和(自身を除く): 19850658

約数列:

[1, 2, 3, 6, 313, 626, 939, 1878, 10501, 21002, 31503, 63006, 3286813, 6573626, 9860439, 19720878]

約数ペア:

[(1, 19720878), (2, 9860439), (3, 6573626), (6, 3286813), (313, 63006), (626, 31503), (939, 21002), (1878, 10501)]