1640641689

素因数分解:

$3^3\times {\mathrm{113}}^1\times {\mathrm{537739}}^1$

素因数の和:537861

約数の個数: 16

約数和(自身を含む): 2452094400

約数和(自身を除く): 811452711

約数列:

[1, 3, 9, 27, 113, 339, 1017, 3051, 537739, 1613217, 4839651, 14518953, 60764507, 182293521, 546880563, 1640641689]

約数ペア:

[(1, 1640641689), (3, 546880563), (9, 182293521), (27, 60764507), (113, 14518953), (339, 4839651), (1017, 1613217), (3051, 537739)]