81005771

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{1097}}^1$

素因数の和:1259

約数の個数: 24

約数和(自身を含む): 103642416

約数和(自身を除く): 22636645

約数列:

[1, 7, 11, 49, 77, 137, 539, 959, 1097, 1507, 6713, 7679, 10549, 12067, 53753, 73843, 84469, 150289, 591283, 1052023, 1653179, 7364161, 11572253, 81005771]

約数ペア:

[(1, 81005771), (7, 11572253), (11, 7364161), (49, 1653179), (77, 1052023), (137, 591283), (539, 150289), (959, 84469), (1097, 73843), (1507, 53753), (6713, 12067), (7679, 10549)]