90210429

素因数分解:

$3^4\times {\mathrm{457}}^1\times {\mathrm{2437}}^1$

素因数の和:2906

約数の個数: 20

約数和(自身を含む): 135109084

約数和(自身を除く): 44898655

約数列:

[1, 3, 9, 27, 81, 457, 1371, 2437, 4113, 7311, 12339, 21933, 37017, 65799, 197397, 1113709, 3341127, 10023381, 30070143, 90210429]

約数ペア:

[(1, 90210429), (3, 30070143), (9, 10023381), (27, 3341127), (81, 1113709), (457, 197397), (1371, 65799), (2437, 37017), (4113, 21933), (7311, 12339)]