31139157

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{11149}}^1$

素因数の和:11185

約数の個数: 24

約数和(自身を含む): 50844000

約数和(自身を除く): 19704843

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 11149, 33447, 78043, 211831, 234129, 546301, 635493, 1482817, 1638903, 4448451, 10379719, 31139157]

約数ペア:

[(1, 31139157), (3, 10379719), (7, 4448451), (19, 1638903), (21, 1482817), (49, 635493), (57, 546301), (133, 234129), (147, 211831), (399, 78043), (931, 33447), (2793, 11149)]