20087249

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{3109}}^1$

素因数の和:3200

約数の個数: 16

約数和(自身を含む): 25079040

約数和(自身を除く): 4991791

約数列:

[1, 7, 13, 71, 91, 497, 923, 3109, 6461, 21763, 40417, 220739, 282919, 1545173, 2869607, 20087249]

約数ペア:

[(1, 20087249), (7, 2869607), (13, 1545173), (71, 282919), (91, 220739), (497, 40417), (923, 21763), (3109, 6461)]