31315581

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{809}}^1$

素因数の和:866

約数の個数: 48

約数和(自身を含む): 54587520

約数和(自身を除く): 23271939

約数列:

[1, 3, 9, 11, 17, 23, 33, 51, 69, 99, 153, 187, 207, 253, 391, 561, 759, 809, 1173, 1683, 2277, 2427, 3519, 4301, 7281, 8899, 12903, 13753, 18607, 26697, 38709, 41259, 55821, 80091, 123777, 151283, 167463, 204677, 316319, 453849, 614031, 948957, 1361547, 1842093, 2846871, 3479509, 10438527, 31315581]

約数ペア:

[(1, 31315581), (3, 10438527), (9, 3479509), (11, 2846871), (17, 1842093), (23, 1361547), (33, 948957), (51, 614031), (69, 453849), (99, 316319), (153, 204677), (187, 167463), (207, 151283), (253, 123777), (391, 80091), (561, 55821), (759, 41259), (809, 38709), (1173, 26697), (1683, 18607), (2277, 13753), (2427, 12903), (3519, 8899), (4301, 7281)]