217921144

素因数分解:

$2^3\times 7^1\times {\mathrm{3891449}}^1$

素因数の和:3891462

約数の個数: 16

約数和(自身を含む): 466974000

約数和(自身を除く): 249052856

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 3891449, 7782898, 15565796, 27240143, 31131592, 54480286, 108960572, 217921144]

約数ペア:

[(1, 217921144), (2, 108960572), (4, 54480286), (7, 31131592), (8, 27240143), (14, 15565796), (28, 7782898), (56, 3891449)]