131236719

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1\times {\mathrm{199}}^1$

素因数の和:479

約数の個数: 32

約数和(自身を含む): 189964800

約数和(自身を除く): 58728081

約数列:

[1, 3, 17, 51, 67, 193, 199, 201, 579, 597, 1139, 3281, 3383, 3417, 9843, 10149, 12931, 13333, 38407, 38793, 39999, 115221, 219827, 226661, 652919, 659481, 679983, 1958757, 2573269, 7719807, 43745573, 131236719]

約数ペア:

[(1, 131236719), (3, 43745573), (17, 7719807), (51, 2573269), (67, 1958757), (193, 679983), (199, 659481), (201, 652919), (579, 226661), (597, 219827), (1139, 115221), (3281, 39999), (3383, 38793), (3417, 38407), (9843, 13333), (10149, 12931)]