257706723

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{1423}}^1$

素因数の和:1563

約数の個数: 32

約数和(自身を含む): 376482816

約数和(自身を除く): 118776093

約数列:

[1, 3, 17, 51, 53, 67, 159, 201, 901, 1139, 1423, 2703, 3417, 3551, 4269, 10653, 24191, 60367, 72573, 75419, 95341, 181101, 226257, 286023, 1282123, 1620797, 3846369, 4862391, 5053073, 15159219, 85902241, 257706723]

約数ペア:

[(1, 257706723), (3, 85902241), (17, 15159219), (51, 5053073), (53, 4862391), (67, 3846369), (159, 1620797), (201, 1282123), (901, 286023), (1139, 226257), (1423, 181101), (2703, 95341), (3417, 75419), (3551, 72573), (4269, 60367), (10653, 24191)]