20510361

素因数分解:

$3^3\times {\mathrm{173}}^1\times {\mathrm{4391}}^1$

素因数の和:4573

約数の個数: 16

約数和(自身を含む): 30568320

約数和(自身を除く): 10057959

約数列:

[1, 3, 9, 27, 173, 519, 1557, 4391, 4671, 13173, 39519, 118557, 759643, 2278929, 6836787, 20510361]

約数ペア:

[(1, 20510361), (3, 6836787), (9, 2278929), (27, 759643), (173, 118557), (519, 39519), (1557, 13173), (4391, 4671)]