28992789

素因数分解:

$3^3\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1171}}^1$

素因数の和:1318

約数の個数: 32

約数和(自身を含む): 49505280

約数和(自身を除く): 20512491

約数列:

[1, 3, 7, 9, 21, 27, 63, 131, 189, 393, 917, 1171, 1179, 2751, 3513, 3537, 8197, 8253, 10539, 24591, 24759, 31617, 73773, 153401, 221319, 460203, 1073807, 1380609, 3221421, 4141827, 9664263, 28992789]

約数ペア:

[(1, 28992789), (3, 9664263), (7, 4141827), (9, 3221421), (21, 1380609), (27, 1073807), (63, 460203), (131, 221319), (189, 153401), (393, 73773), (917, 31617), (1171, 24759), (1179, 24591), (2751, 10539), (3513, 8253), (3537, 8197)]