291238947

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{239}}^1\times {\mathrm{1907}}^1$

素因数の和:2223

約数の個数: 24

約数和(自身を含む): 428613120

約数和(自身を除く): 137374173

約数列:

[1, 3, 9, 71, 213, 239, 639, 717, 1907, 2151, 5721, 16969, 17163, 50907, 135397, 152721, 406191, 455773, 1218573, 1367319, 4101957, 32359883, 97079649, 291238947]

約数ペア:

[(1, 291238947), (3, 97079649), (9, 32359883), (71, 4101957), (213, 1367319), (239, 1218573), (639, 455773), (717, 406191), (1907, 152721), (2151, 135397), (5721, 50907), (16969, 17163)]