20712872

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{63149}}^1$

素因数の和:63196

約数の個数: 16

約数和(自身を含む): 39784500

約数和(自身を除く): 19071628

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 63149, 126298, 252596, 505192, 2589109, 5178218, 10356436, 20712872]

約数ペア:

[(1, 20712872), (2, 10356436), (4, 5178218), (8, 2589109), (41, 505192), (82, 252596), (164, 126298), (328, 63149)]