20457441

素因数分解:

$3^5\times {\mathrm{29}}^1\times {\mathrm{2903}}^1$

素因数の和:2947

約数の個数: 24

約数和(自身を含む): 31711680

約数和(自身を除く): 11254239

約数列:

[1, 3, 9, 27, 29, 81, 87, 243, 261, 783, 2349, 2903, 7047, 8709, 26127, 78381, 84187, 235143, 252561, 705429, 757683, 2273049, 6819147, 20457441]

約数ペア:

[(1, 20457441), (3, 6819147), (9, 2273049), (27, 757683), (29, 705429), (81, 252561), (87, 235143), (243, 84187), (261, 78381), (783, 26127), (2349, 8709), (2903, 7047)]