31147281

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:267

約数の個数: 64

約数和(自身を含む): 55296000

約数和(自身を除く): 24148719

約数列:

[1, 3, 9, 11, 17, 27, 31, 33, 51, 93, 99, 153, 187, 199, 279, 297, 341, 459, 527, 561, 597, 837, 1023, 1581, 1683, 1791, 2189, 3069, 3383, 4743, 5049, 5373, 5797, 6169, 6567, 9207, 10149, 14229, 17391, 18507, 19701, 30447, 37213, 52173, 55521, 59103, 67859, 91341, 104873, 111639, 156519, 166563, 203577, 314619, 334917, 610731, 943857, 1004751, 1153603, 1832193, 2831571, 3460809, 10382427, 31147281]

約数ペア:

[(1, 31147281), (3, 10382427), (9, 3460809), (11, 2831571), (17, 1832193), (27, 1153603), (31, 1004751), (33, 943857), (51, 610731), (93, 334917), (99, 314619), (153, 203577), (187, 166563), (199, 156519), (279, 111639), (297, 104873), (341, 91341), (459, 67859), (527, 59103), (561, 55521), (597, 52173), (837, 37213), (1023, 30447), (1581, 19701), (1683, 18507), (1791, 17391), (2189, 14229), (3069, 10149), (3383, 9207), (4743, 6567), (5049, 6169), (5373, 5797)]