1555281

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1$

素因数の和:243

約数の個数: 40

約数和(自身を含む): 2873024

約数和(自身を除く): 1317743

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 189, 211, 273, 351, 567, 633, 819, 1053, 1477, 1899, 2457, 2743, 4431, 5697, 7371, 8229, 13293, 17091, 19201, 24687, 39879, 57603, 74061, 119637, 172809, 222183, 518427, 1555281]

約数ペア:

[(1, 1555281), (3, 518427), (7, 222183), (9, 172809), (13, 119637), (21, 74061), (27, 57603), (39, 39879), (63, 24687), (81, 19201), (91, 17091), (117, 13293), (189, 8229), (211, 7371), (273, 5697), (351, 4431), (567, 2743), (633, 2457), (819, 1899), (1053, 1477)]