81865761

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{977}}^1$

素因数の和:1081

約数の個数: 32

約数和(自身を含む): 121678848

約数和(自身を除く): 39813087

約数列:

[1, 3, 17, 31, 51, 53, 93, 159, 527, 901, 977, 1581, 1643, 2703, 2931, 4929, 16609, 27931, 30287, 49827, 51781, 83793, 90861, 155343, 514879, 880277, 1544637, 1605211, 2640831, 4815633, 27288587, 81865761]

約数ペア:

[(1, 81865761), (3, 27288587), (17, 4815633), (31, 2640831), (51, 1605211), (53, 1544637), (93, 880277), (159, 514879), (527, 155343), (901, 90861), (977, 83793), (1581, 51781), (1643, 49827), (2703, 30287), (2931, 27931), (4929, 16609)]