21438837

素因数分解:

$3^4\times 7^1\times {\mathrm{37811}}^1$

素因数の和:37830

約数の個数: 20

約数和(自身を含む): 36602016

約数和(自身を除く): 15163179

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 37811, 113433, 264677, 340299, 794031, 1020897, 2382093, 3062691, 7146279, 21438837]

約数ペア:

[(1, 21438837), (3, 7146279), (7, 3062691), (9, 2382093), (21, 1020897), (27, 794031), (63, 340299), (81, 264677), (189, 113433), (567, 37811)]