20971886

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{62047}}^1$

素因数の和:62075

約数の個数: 12

約数和(自身を含む): 34064352

約数和(自身を除く): 13092466

約数列:

[1, 2, 13, 26, 169, 338, 62047, 124094, 806611, 1613222, 10485943, 20971886]

約数ペア:

[(1, 20971886), (2, 10485943), (13, 1613222), (26, 806611), (169, 124094), (338, 62047)]