20816894

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{78259}}^1$

素因数の和:78287

約数の個数: 16

約数和(自身を含む): 37564800

約数和(自身を除く): 16747906

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 78259, 156518, 547813, 1095626, 1486921, 2973842, 10408447, 20816894]

約数ペア:

[(1, 20816894), (2, 10408447), (7, 2973842), (14, 1486921), (19, 1095626), (38, 547813), (133, 156518), (266, 78259)]