21993687

素因数分解:

$3^5\times {\mathrm{29}}^1\times {\mathrm{3121}}^1$

素因数の和:3165

約数の個数: 24

約数和(自身を含む): 34092240

約数和(自身を除く): 12098553

約数列:

[1, 3, 9, 27, 29, 81, 87, 243, 261, 783, 2349, 3121, 7047, 9363, 28089, 84267, 90509, 252801, 271527, 758403, 814581, 2443743, 7331229, 21993687]

約数ペア:

[(1, 21993687), (3, 7331229), (9, 2443743), (27, 814581), (29, 758403), (81, 271527), (87, 252801), (243, 90509), (261, 84267), (783, 28089), (2349, 9363), (3121, 7047)]