19791868

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{5003}}^1$

素因数の和:5073

約数の個数: 24

約数和(自身を含む): 36989568

約数和(自身を除く): 17197700

約数列:

[1, 2, 4, 23, 43, 46, 86, 92, 172, 989, 1978, 3956, 5003, 10006, 20012, 115069, 215129, 230138, 430258, 460276, 860516, 4947967, 9895934, 19791868]

約数ペア:

[(1, 19791868), (2, 9895934), (4, 4947967), (23, 860516), (43, 460276), (46, 430258), (86, 230138), (92, 215129), (172, 115069), (989, 20012), (1978, 10006), (3956, 5003)]