21290147253

素因数分解:

$3^2\times {\mathrm{139}}^1\times {\mathrm{17018503}}^1$

素因数の和:17018648

約数の個数: 12

約数和(自身を含む): 30973677280

約数和(自身を除く): 9683530027

約数列:

[1, 3, 9, 139, 417, 1251, 17018503, 51055509, 153166527, 2365571917, 7096715751, 21290147253]

約数ペア:

[(1, 21290147253), (3, 7096715751), (9, 2365571917), (139, 153166527), (417, 51055509), (1251, 17018503)]