1639838319

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1661437}}^1$

素因数の和:1661494

約数の個数: 16

約数和(自身を含む): 2551968768

約数和(自身を除く): 912130449

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 1661437, 4984311, 11630059, 34890177, 78087539, 234262617, 546612773, 1639838319]

約数ペア:

[(1, 1639838319), (3, 546612773), (7, 234262617), (21, 78087539), (47, 34890177), (141, 11630059), (329, 4984311), (987, 1661437)]