171387009

素因数分解:

$3^4\times {\mathrm{157}}^1\times {\mathrm{13477}}^1$

素因数の和:13646

約数の個数: 20

約数和(自身を含む): 257672404

約数和(自身を除く): 86285395

約数列:

[1, 3, 9, 27, 81, 157, 471, 1413, 4239, 12717, 13477, 40431, 121293, 363879, 1091637, 2115889, 6347667, 19043001, 57129003, 171387009]

約数ペア:

[(1, 171387009), (3, 57129003), (9, 19043001), (27, 6347667), (81, 2115889), (157, 1091637), (471, 363879), (1413, 121293), (4239, 40431), (12717, 13477)]