2011779721

素因数分解:

$7^3\times {\mathrm{67}}^1\times {\mathrm{87541}}^1$

素因数の和:87629

約数の個数: 16

約数和(自身を含む): 2381142400

約数和(自身を除く): 369362679

約数列:

[1, 7, 49, 67, 343, 469, 3283, 22981, 87541, 612787, 4289509, 5865247, 30026563, 41056729, 287397103, 2011779721]

約数ペア:

[(1, 2011779721), (7, 287397103), (49, 41056729), (67, 30026563), (343, 5865247), (469, 4289509), (3283, 612787), (22981, 87541)]