20837979

素因数分解:

$3^5\times {\mathrm{29}}^1\times {\mathrm{2957}}^1$

素因数の和:3001

約数の個数: 24

約数和(自身を含む): 32301360

約数和(自身を除く): 11463381

約数列:

[1, 3, 9, 27, 29, 81, 87, 243, 261, 783, 2349, 2957, 7047, 8871, 26613, 79839, 85753, 239517, 257259, 718551, 771777, 2315331, 6945993, 20837979]

約数ペア:

[(1, 20837979), (3, 6945993), (9, 2315331), (27, 771777), (29, 718551), (81, 257259), (87, 239517), (243, 85753), (261, 79839), (783, 26613), (2349, 8871), (2957, 7047)]