2989791

素因数分解:

$3^4\times 7^1\times {\mathrm{5273}}^1$

素因数の和:5292

約数の個数: 20

約数和(自身を含む): 5105232

約数和(自身を除く): 2115441

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 5273, 15819, 36911, 47457, 110733, 142371, 332199, 427113, 996597, 2989791]

約数ペア:

[(1, 2989791), (3, 996597), (7, 427113), (9, 332199), (21, 142371), (27, 110733), (63, 47457), (81, 36911), (189, 15819), (567, 5273)]