19887063

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{20149}}^1$

素因数の和:20206

約数の個数: 16

約数和(自身を含む): 30950400

約数和(自身を除く): 11063337

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 20149, 60447, 141043, 423129, 947003, 2841009, 6629021, 19887063]

約数ペア:

[(1, 19887063), (3, 6629021), (7, 2841009), (21, 947003), (47, 423129), (141, 141043), (329, 60447), (987, 20149)]