291255561

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{1109}}^1$

素因数の和:1326

約数の個数: 32

約数和(自身を含む): 441158400

約数和(自身を除く): 149902839

約数列:

[1, 3, 9, 27, 71, 137, 213, 411, 639, 1109, 1233, 1917, 3327, 3699, 9727, 9981, 29181, 29943, 78739, 87543, 151933, 236217, 262629, 455799, 708651, 1367397, 2125953, 4102191, 10787243, 32361729, 97085187, 291255561]

約数ペア:

[(1, 291255561), (3, 97085187), (9, 32361729), (27, 10787243), (71, 4102191), (137, 2125953), (213, 1367397), (411, 708651), (639, 455799), (1109, 262629), (1233, 236217), (1917, 151933), (3327, 87543), (3699, 78739), (9727, 29943), (9981, 29181)]