20269455

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{28751}}^1$

素因数の和:28806

約数の個数: 16

約数和(自身を含む): 33122304

約数和(自身を除く): 12852849

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 28751, 86253, 143755, 431265, 1351297, 4053891, 6756485, 20269455]

約数ペア:

[(1, 20269455), (3, 6756485), (5, 4053891), (15, 1351297), (47, 431265), (141, 143755), (235, 86253), (705, 28751)]