20512187745

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{195354169}}^1$

素因数の和:195354184

約数の個数: 16

約数和(自身を含む): 37508000640

約数和(自身を除く): 16995812895

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 195354169, 586062507, 976770845, 1367479183, 2930312535, 4102437549, 6837395915, 20512187745]

約数ペア:

[(1, 20512187745), (3, 6837395915), (5, 4102437549), (7, 2930312535), (15, 1367479183), (21, 976770845), (35, 586062507), (105, 195354169)]