20797164514

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{87553}}^1$

素因数の和:87647

約数の個数: 48

約数和(自身を含む): 38428501248

約数和(自身を除く): 17631336734

約数列:

[1, 2, 7, 14, 19, 38, 47, 94, 133, 266, 329, 361, 658, 722, 893, 1786, 2527, 5054, 6251, 12502, 16967, 33934, 87553, 118769, 175106, 237538, 612871, 1225742, 1663507, 3327014, 4114991, 8229982, 11644549, 23289098, 28804937, 31606633, 57609874, 63213266, 78184829, 156369658, 221246431, 442492862, 547293803, 1094587606, 1485511751, 2971023502, 10398582257, 20797164514]

約数ペア:

[(1, 20797164514), (2, 10398582257), (7, 2971023502), (14, 1485511751), (19, 1094587606), (38, 547293803), (47, 442492862), (94, 221246431), (133, 156369658), (266, 78184829), (329, 63213266), (361, 57609874), (658, 31606633), (722, 28804937), (893, 23289098), (1786, 11644549), (2527, 8229982), (5054, 4114991), (6251, 3327014), (12502, 1663507), (16967, 1225742), (33934, 612871), (87553, 237538), (118769, 175106)]