19998582961

素因数分解:

$7^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{14821}}^1$

素因数の和:14914

約数の個数: 48

約数和(自身を含む): 26210039040

約数和(自身を除く): 6211456079

約数列:

[1, 7, 17, 23, 29, 119, 161, 203, 289, 391, 493, 667, 2023, 2737, 3451, 4669, 6647, 8381, 11339, 14821, 46529, 58667, 79373, 103747, 192763, 251957, 340883, 429809, 1349341, 1763699, 2386181, 3008663, 4283269, 5795011, 7306753, 9885607, 29982883, 40565077, 51147271, 69199249, 98515187, 124214801, 168055319, 689606309, 869503607, 1176387233, 2856940423, 19998582961]

約数ペア:

[(1, 19998582961), (7, 2856940423), (17, 1176387233), (23, 869503607), (29, 689606309), (119, 168055319), (161, 124214801), (203, 98515187), (289, 69199249), (391, 51147271), (493, 40565077), (667, 29982883), (2023, 9885607), (2737, 7306753), (3451, 5795011), (4669, 4283269), (6647, 3008663), (8381, 2386181), (11339, 1763699), (14821, 1349341), (46529, 429809), (58667, 340883), (79373, 251957), (103747, 192763)]