21129124797

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1\times {\mathrm{12473}}^1$

素因数の和:12802

約数の個数: 48

約数和(自身を含む): 33906128256

約数和(自身を除く): 12777003459

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 241, 639, 723, 781, 2169, 2343, 2651, 7029, 7953, 12473, 17111, 23859, 37419, 51333, 112257, 137203, 153999, 188221, 411609, 564663, 885583, 1234827, 1693989, 2656749, 3005993, 7970247, 9017979, 9741413, 27053937, 29224239, 33065923, 87672717, 99197769, 213425503, 297593307, 640276509, 1920829527, 2347680533, 7043041599, 21129124797]

約数ペア:

[(1, 21129124797), (3, 7043041599), (9, 2347680533), (11, 1920829527), (33, 640276509), (71, 297593307), (99, 213425503), (213, 99197769), (241, 87672717), (639, 33065923), (723, 29224239), (781, 27053937), (2169, 9741413), (2343, 9017979), (2651, 7970247), (7029, 3005993), (7953, 2656749), (12473, 1693989), (17111, 1234827), (23859, 885583), (37419, 564663), (51333, 411609), (112257, 188221), (137203, 153999)]