18719526

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{445703}}^1$

素因数の和:445715

約数の個数: 16

約数和(自身を含む): 42787584

約数和(自身を除く): 24068058

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 445703, 891406, 1337109, 2674218, 3119921, 6239842, 9359763, 18719526]

約数ペア:

[(1, 18719526), (2, 9359763), (3, 6239842), (6, 3119921), (7, 2674218), (14, 1337109), (21, 891406), (42, 445703)]