20806303707

素因数分解:

$3^6\times 7^2\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:285

約数の個数: 168

約数和(自身を含む): 37619835840

約数和(自身を除く): 16813532133

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 73, 79, 81, 101, 147, 189, 219, 237, 243, 303, 441, 511, 553, 567, 657, 707, 711, 729, 909, 1323, 1533, 1659, 1701, 1971, 2121, 2133, 2727, 3577, 3871, 3969, 4599, 4949, 4977, 5103, 5767, 5913, 6363, 6399, 7373, 7979, 8181, 10731, 11613, 11907, 13797, 14847, 14931, 17301, 17739, 19089, 19197, 22119, 23937, 24543, 32193, 34839, 35721, 40369, 41391, 44541, 44793, 51611, 51903, 53217, 55853, 57267, 57591, 66357, 71811, 73629, 96579, 104517, 121107, 124173, 133623, 134379, 154833, 155709, 167559, 171801, 199071, 215433, 282583, 289737, 313551, 361277, 363321, 372519, 390971, 400869, 403137, 464499, 467127, 502677, 515403, 582467, 597213, 646299, 847749, 869211, 940653, 1083831, 1089963, 1172913, 1202607, 1393497, 1401381, 1508031, 1747401, 1791639, 1938897, 2543247, 2607633, 2821959, 3251493, 3269889, 3518739, 3607821, 4077269, 4180491, 4204143, 4524093, 5242203, 5374917, 5816691, 7629741, 9754479, 9809667, 10556217, 12231807, 12541473, 13572279, 15726609, 22889223, 28540883, 29263437, 29429001, 31668651, 36695421, 37624419, 40716837, 47179827, 68667669, 85622649, 87790311, 95005953, 110086263, 141539481, 206003007, 256867947, 263370933, 285017859, 330258789, 424618443, 770603841, 990776367, 2311811523, 2972329101, 6935434569, 20806303707]

約数ペア:

[(1, 20806303707), (3, 6935434569), (7, 2972329101), (9, 2311811523), (21, 990776367), (27, 770603841), (49, 424618443), (63, 330258789), (73, 285017859), (79, 263370933), (81, 256867947), (101, 206003007), (147, 141539481), (189, 110086263), (219, 95005953), (237, 87790311), (243, 85622649), (303, 68667669), (441, 47179827), (511, 40716837), (553, 37624419), (567, 36695421), (657, 31668651), (707, 29429001), (711, 29263437), (729, 28540883), (909, 22889223), (1323, 15726609), (1533, 13572279), (1659, 12541473), (1701, 12231807), (1971, 10556217), (2121, 9809667), (2133, 9754479), (2727, 7629741), (3577, 5816691), (3871, 5374917), (3969, 5242203), (4599, 4524093), (4949, 4204143), (4977, 4180491), (5103, 4077269), (5767, 3607821), (5913, 3518739), (6363, 3269889), (6399, 3251493), (7373, 2821959), (7979, 2607633), (8181, 2543247), (10731, 1938897), (11613, 1791639), (11907, 1747401), (13797, 1508031), (14847, 1401381), (14931, 1393497), (17301, 1202607), (17739, 1172913), (19089, 1089963), (19197, 1083831), (22119, 940653), (23937, 869211), (24543, 847749), (32193, 646299), (34839, 597213), (35721, 582467), (40369, 515403), (41391, 502677), (44541, 467127), (44793, 464499), (51611, 403137), (51903, 400869), (53217, 390971), (55853, 372519), (57267, 363321), (57591, 361277), (66357, 313551), (71811, 289737), (73629, 282583), (96579, 215433), (104517, 199071), (121107, 171801), (124173, 167559), (133623, 155709), (134379, 154833)]