287256081

素因数分解:

$3^1\times 7^2\times {\mathrm{587}}^1\times {\mathrm{3329}}^1$

素因数の和:3933

約数の個数: 24

約数和(自身を含む): 446433120

約数和(自身を除く): 159177039

約数列:

[1, 3, 7, 21, 49, 147, 587, 1761, 3329, 4109, 9987, 12327, 23303, 28763, 69909, 86289, 163121, 489363, 1954123, 5862369, 13678861, 41036583, 95752027, 287256081]

約数ペア:

[(1, 287256081), (3, 95752027), (7, 41036583), (21, 13678861), (49, 5862369), (147, 1954123), (587, 489363), (1761, 163121), (3329, 86289), (4109, 69909), (9987, 28763), (12327, 23303)]