9920865

素因数分解:

$3^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1571}}^1$

素因数の和:2000

約数の個数: 16

約数和(自身を含む): 15921216

約数和(自身を除く): 6000351

約数列:

[1, 3, 5, 15, 421, 1263, 1571, 2105, 4713, 6315, 7855, 23565, 661391, 1984173, 3306955, 9920865]

約数ペア:

[(1, 9920865), (3, 3306955), (5, 1984173), (15, 661391), (421, 23565), (1263, 7855), (1571, 6315), (2105, 4713)]