21000388670

素因数分解:

$2^1\times 5^1\times {\mathrm{2100038867}}^1$

素因数の和:2100038874

約数の個数: 8

約数和(自身を含む): 37800699624

約数和(自身を除く): 16800310954

約数列:

[1, 2, 5, 10, 2100038867, 4200077734, 10500194335, 21000388670]

約数ペア:

[(1, 21000388670), (2, 10500194335), (5, 4200077734), (10, 2100038867)]