19818010

素因数分解:

$2^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{8887}}^1$

素因数の和:9117

約数の個数: 16

約数和(自身を含む): 35836416

約数和(自身を除く): 16018406

約数列:

[1, 2, 5, 10, 223, 446, 1115, 2230, 8887, 17774, 44435, 88870, 1981801, 3963602, 9909005, 19818010]

約数ペア:

[(1, 19818010), (2, 9909005), (5, 3963602), (10, 1981801), (223, 88870), (446, 44435), (1115, 17774), (2230, 8887)]