678249621

素因数分解:

$3^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{761}}^1$

素因数の和:871

約数の個数: 72

約数和(自身を含む): 1192523904

約数和(自身を除く): 514274283

約数列:

[1, 3, 7, 9, 21, 43, 47, 49, 63, 129, 141, 147, 301, 329, 387, 423, 441, 761, 903, 987, 2021, 2107, 2283, 2303, 2709, 2961, 5327, 6063, 6321, 6849, 6909, 14147, 15981, 18189, 18963, 20727, 32723, 35767, 37289, 42441, 47943, 98169, 99029, 107301, 111867, 127323, 229061, 250369, 294507, 297087, 321903, 335601, 687183, 751107, 891261, 1537981, 1603427, 1752583, 2061549, 2253321, 4613943, 4810281, 5257749, 10765867, 13841829, 14430843, 15773247, 32297601, 75361069, 96892803, 226083207, 678249621]

約数ペア:

[(1, 678249621), (3, 226083207), (7, 96892803), (9, 75361069), (21, 32297601), (43, 15773247), (47, 14430843), (49, 13841829), (63, 10765867), (129, 5257749), (141, 4810281), (147, 4613943), (301, 2253321), (329, 2061549), (387, 1752583), (423, 1603427), (441, 1537981), (761, 891261), (903, 751107), (987, 687183), (2021, 335601), (2107, 321903), (2283, 297087), (2303, 294507), (2709, 250369), (2961, 229061), (5327, 127323), (6063, 111867), (6321, 107301), (6849, 99029), (6909, 98169), (14147, 47943), (15981, 42441), (18189, 37289), (18963, 35767), (20727, 32723)]