131718309

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{89}}^2\times {\mathrm{241}}^1$

素因数の和:445

約数の個数: 24

約数和(自身を含む): 186111552

約数和(自身を除く): 54393243

約数列:

[1, 3, 23, 69, 89, 241, 267, 723, 2047, 5543, 6141, 7921, 16629, 21449, 23763, 64347, 182183, 493327, 546549, 1479981, 1908961, 5726883, 43906103, 131718309]

約数ペア:

[(1, 131718309), (3, 43906103), (23, 5726883), (69, 1908961), (89, 1479981), (241, 546549), (267, 493327), (723, 182183), (2047, 64347), (5543, 23763), (6141, 21449), (7921, 16629)]