81507986

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{306421}}^1$

素因数の和:306449

約数の個数: 16

約数和(自身を含む): 147082560

約数和(自身を除く): 65574574

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 306421, 612842, 2144947, 4289894, 5821999, 11643998, 40753993, 81507986]

約数ペア:

[(1, 81507986), (2, 40753993), (7, 11643998), (14, 5821999), (19, 4289894), (38, 2144947), (133, 612842), (266, 306421)]