20906397

素因数分解:

$3^3\times {\mathrm{73}}^1\times {\mathrm{10607}}^1$

素因数の和:10689

約数の個数: 16

約数和(自身を含む): 31399680

約数和(自身を除く): 10493283

約数列:

[1, 3, 9, 27, 73, 219, 657, 1971, 10607, 31821, 95463, 286389, 774311, 2322933, 6968799, 20906397]

約数ペア:

[(1, 20906397), (3, 6968799), (9, 2322933), (27, 774311), (73, 286389), (219, 95463), (657, 31821), (1971, 10607)]