20798478

素因数分解:

$2^1\times 3^3\times {\mathrm{599}}^1\times {\mathrm{643}}^1$

素因数の和:1253

約数の個数: 32

約数和(自身を含む): 46368000

約数和(自身を除く): 25569522

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 599, 643, 1198, 1286, 1797, 1929, 3594, 3858, 5391, 5787, 10782, 11574, 16173, 17361, 32346, 34722, 385157, 770314, 1155471, 2310942, 3466413, 6932826, 10399239, 20798478]

約数ペア:

[(1, 20798478), (2, 10399239), (3, 6932826), (6, 3466413), (9, 2310942), (18, 1155471), (27, 770314), (54, 385157), (599, 34722), (643, 32346), (1198, 17361), (1286, 16173), (1797, 11574), (1929, 10782), (3594, 5787), (3858, 5391)]