20848995

素因数分解:

$3^4\times 5^1\times {\mathrm{51479}}^1$

素因数の和:51496

約数の個数: 20

約数和(自身を含む): 37374480

約数和(自身を除く): 16525485

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 51479, 154437, 257395, 463311, 772185, 1389933, 2316555, 4169799, 6949665, 20848995]

約数ペア:

[(1, 20848995), (3, 6949665), (5, 4169799), (9, 2316555), (15, 1389933), (27, 772185), (45, 463311), (81, 257395), (135, 154437), (405, 51479)]