21083617821

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{21499}}^1$

素因数の和:21634

約数の個数: 64

約数和(自身を含む): 35368704000

約数和(自身を除く): 14285086179

約数列:

[1, 3, 7, 17, 21, 41, 51, 67, 119, 123, 201, 287, 357, 469, 697, 861, 1139, 1407, 2091, 2747, 3417, 4879, 7973, 8241, 14637, 19229, 21499, 23919, 46699, 57687, 64497, 140097, 150493, 326893, 365483, 451479, 881459, 980679, 1096449, 1440433, 2558381, 2644377, 4321299, 6170213, 7675143, 10083031, 14984803, 18510639, 24487361, 30249093, 44954409, 59057753, 73462083, 104893621, 171411527, 177173259, 314680863, 413404271, 514234581, 1003981801, 1240212813, 3011945403, 7027872607, 21083617821]

約数ペア:

[(1, 21083617821), (3, 7027872607), (7, 3011945403), (17, 1240212813), (21, 1003981801), (41, 514234581), (51, 413404271), (67, 314680863), (119, 177173259), (123, 171411527), (201, 104893621), (287, 73462083), (357, 59057753), (469, 44954409), (697, 30249093), (861, 24487361), (1139, 18510639), (1407, 14984803), (2091, 10083031), (2747, 7675143), (3417, 6170213), (4879, 4321299), (7973, 2644377), (8241, 2558381), (14637, 1440433), (19229, 1096449), (21499, 980679), (23919, 881459), (46699, 451479), (57687, 365483), (64497, 326893), (140097, 150493)]