1991022047

素因数分解:

$7^4\times {\mathrm{233}}^1\times {\mathrm{3559}}^1$

素因数の和:3820

約数の個数: 20

約数和(自身を含む): 2333345040

約数和(自身を除く): 342322993

約数列:

[1, 7, 49, 233, 343, 1631, 2401, 3559, 11417, 24913, 79919, 174391, 559433, 829247, 1220737, 5804729, 8545159, 40633103, 284431721, 1991022047]

約数ペア:

[(1, 1991022047), (7, 284431721), (49, 40633103), (233, 8545159), (343, 5804729), (1631, 1220737), (2401, 829247), (3559, 559433), (11417, 174391), (24913, 79919)]