28081809

素因数分解:

$3^6\times 7^1\times {\mathrm{5503}}^1$

素因数の和:5528

約数の個数: 28

約数和(自身を含む): 48126976

約数和(自身を除く): 20045167

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 5103, 5503, 16509, 38521, 49527, 115563, 148581, 346689, 445743, 1040067, 1337229, 3120201, 4011687, 9360603, 28081809]

約数ペア:

[(1, 28081809), (3, 9360603), (7, 4011687), (9, 3120201), (21, 1337229), (27, 1040067), (63, 445743), (81, 346689), (189, 148581), (243, 115563), (567, 49527), (729, 38521), (1701, 16509), (5103, 5503)]