21039938307

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{307}}^1\times {\mathrm{2351}}^1$

素因数の和:2784

約数の個数: 48

約数和(自身を含む): 31642490880

約数和(自身を除く): 10602552573

約数列:

[1, 3, 9, 41, 79, 123, 237, 307, 369, 711, 921, 2351, 2763, 3239, 7053, 9717, 12587, 21159, 24253, 29151, 37761, 72759, 96391, 113283, 185729, 218277, 289173, 557187, 721757, 867519, 994373, 1671561, 2165271, 2983119, 6495813, 7614889, 8949357, 22844667, 29592037, 57018803, 68534001, 88776111, 171056409, 266328333, 513169227, 2337770923, 7013312769, 21039938307]

約数ペア:

[(1, 21039938307), (3, 7013312769), (9, 2337770923), (41, 513169227), (79, 266328333), (123, 171056409), (237, 88776111), (307, 68534001), (369, 57018803), (711, 29592037), (921, 22844667), (2351, 8949357), (2763, 7614889), (3239, 6495813), (7053, 2983119), (9717, 2165271), (12587, 1671561), (21159, 994373), (24253, 867519), (29151, 721757), (37761, 557187), (72759, 289173), (96391, 218277), (113283, 185729)]