20816001

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{40577}}^1$

素因数の和:40605

約数の個数: 16

約数和(自身を含む): 32462400

約数和(自身を除く): 11646399

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 40577, 121731, 365193, 770963, 1095579, 2312889, 6938667, 20816001]

約数ペア:

[(1, 20816001), (3, 6938667), (9, 2312889), (19, 1095579), (27, 770963), (57, 365193), (171, 121731), (513, 40577)]