81717891

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{281}}^1$

素因数の和:427

約数の個数: 32

約数和(自身を含む): 116951040

約数和(自身を除く): 35233149

約数列:

[1, 3, 31, 53, 59, 93, 159, 177, 281, 843, 1643, 1829, 3127, 4929, 5487, 8711, 9381, 14893, 16579, 26133, 44679, 49737, 96937, 290811, 461683, 513949, 878687, 1385049, 1541847, 2636061, 27239297, 81717891]

約数ペア:

[(1, 81717891), (3, 27239297), (31, 2636061), (53, 1541847), (59, 1385049), (93, 878687), (159, 513949), (177, 461683), (281, 290811), (843, 96937), (1643, 49737), (1829, 44679), (3127, 26133), (4929, 16579), (5487, 14893), (8711, 9381)]