81253678

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{4729}}^1$

素因数の和:4824

約数の個数: 24

約数和(自身を含む): 135883440

約数和(自身を除く): 54629762

約数列:

[1, 2, 11, 22, 71, 121, 142, 242, 781, 1562, 4729, 8591, 9458, 17182, 52019, 104038, 335759, 572209, 671518, 1144418, 3693349, 7386698, 40626839, 81253678]

約数ペア:

[(1, 81253678), (2, 40626839), (11, 7386698), (22, 3693349), (71, 1144418), (121, 671518), (142, 572209), (242, 335759), (781, 104038), (1562, 52019), (4729, 17182), (8591, 9458)]