20512647

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{863}}^1$

素因数の和:1027

約数の個数: 24

約数和(自身を含む): 31449600

約数和(自身を除く): 10936953

約数列:

[1, 3, 9, 19, 57, 139, 171, 417, 863, 1251, 2589, 2641, 7767, 7923, 16397, 23769, 49191, 119957, 147573, 359871, 1079613, 2279183, 6837549, 20512647]

約数ペア:

[(1, 20512647), (3, 6837549), (9, 2279183), (19, 1079613), (57, 359871), (139, 147573), (171, 119957), (417, 49191), (863, 23769), (1251, 16397), (2589, 7923), (2641, 7767)]