131813241

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{330359}}^1$

素因数の和:330388

約数の個数: 16

約数和(自身を含む): 211430400

約数和(自身を除く): 79617159

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 330359, 991077, 2312513, 6276821, 6937539, 18830463, 43937747, 131813241]

約数ペア:

[(1, 131813241), (3, 43937747), (7, 18830463), (19, 6937539), (21, 6276821), (57, 2312513), (133, 991077), (399, 330359)]