19419533

素因数分解:

$7^2\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:237

約数の個数: 24

約数和(自身を含む): 23536440

約数和(自身を除く): 4116907

約数列:

[1, 7, 49, 61, 73, 89, 427, 511, 623, 2989, 3577, 4361, 4453, 5429, 6497, 31171, 38003, 45479, 218197, 266021, 318353, 396317, 2774219, 19419533]

約数ペア:

[(1, 19419533), (7, 2774219), (49, 396317), (61, 318353), (73, 266021), (89, 218197), (427, 45479), (511, 38003), (623, 31171), (2989, 6497), (3577, 5429), (4361, 4453)]