19110020

素因数分解:

$2^2\times 5^1\times {\mathrm{955501}}^1$

素因数の和:955510

約数の個数: 12

約数和(自身を含む): 40131084

約数和(自身を除く): 21021064

約数列:

[1, 2, 4, 5, 10, 20, 955501, 1911002, 3822004, 4777505, 9555010, 19110020]

約数ペア:

[(1, 19110020), (2, 9555010), (4, 4777505), (5, 3822004), (10, 1911002), (20, 955501)]