20687710

素因数分解:

$2^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{9277}}^1$

素因数の和:9507

約数の個数: 16

約数和(自身を含む): 37408896

約数和(自身を除く): 16721186

約数列:

[1, 2, 5, 10, 223, 446, 1115, 2230, 9277, 18554, 46385, 92770, 2068771, 4137542, 10343855, 20687710]

約数ペア:

[(1, 20687710), (2, 10343855), (5, 4137542), (10, 2068771), (223, 92770), (446, 46385), (1115, 18554), (2230, 9277)]