20512338777

素因数分解:

$3^3\times 7^1\times {\mathrm{271}}^1\times {\mathrm{557}}^1\times {\mathrm{719}}^1$

素因数の和:1563

約数の個数: 64

約数和(自身を含む): 34969190400

約数和(自身を除く): 14456851623

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 271, 557, 719, 813, 1671, 1897, 2157, 2439, 3899, 5013, 5033, 5691, 6471, 7317, 11697, 15039, 15099, 17073, 19413, 35091, 45297, 51219, 105273, 135891, 150947, 194849, 400483, 452841, 584547, 1056629, 1201449, 1358523, 1363943, 1753641, 2803381, 3169887, 3604347, 4075569, 4091829, 5260923, 8410143, 9509661, 10813041, 12275487, 25230429, 28528983, 36826461, 75691287, 108530893, 325592679, 759716251, 976778037, 2279148753, 2930334111, 6837446259, 20512338777]

約数ペア:

[(1, 20512338777), (3, 6837446259), (7, 2930334111), (9, 2279148753), (21, 976778037), (27, 759716251), (63, 325592679), (189, 108530893), (271, 75691287), (557, 36826461), (719, 28528983), (813, 25230429), (1671, 12275487), (1897, 10813041), (2157, 9509661), (2439, 8410143), (3899, 5260923), (5013, 4091829), (5033, 4075569), (5691, 3604347), (6471, 3169887), (7317, 2803381), (11697, 1753641), (15039, 1363943), (15099, 1358523), (17073, 1201449), (19413, 1056629), (35091, 584547), (45297, 452841), (51219, 400483), (105273, 194849), (135891, 150947)]