619293879

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{6173}}^1$

素因数の和:6407

約数の個数: 24

約数和(自身を含む): 913060512

約数和(自身を除く): 293766633

約数列:

[1, 3, 9, 71, 157, 213, 471, 639, 1413, 6173, 11147, 18519, 33441, 55557, 100323, 438283, 969161, 1314849, 2907483, 3944547, 8722449, 68810431, 206431293, 619293879]

約数ペア:

[(1, 619293879), (3, 206431293), (9, 68810431), (71, 8722449), (157, 3944547), (213, 2907483), (471, 1314849), (639, 969161), (1413, 438283), (6173, 100323), (11147, 55557), (18519, 33441)]