19989852

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^2\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:167

約数の個数: 72

約数和(自身を含む): 50539776

約数和(自身を除く): 30549924

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 47, 67, 69, 92, 94, 134, 138, 141, 188, 201, 268, 276, 282, 402, 529, 564, 804, 1058, 1081, 1541, 1587, 2116, 2162, 3082, 3149, 3174, 3243, 4324, 4623, 6164, 6298, 6348, 6486, 9246, 9447, 12596, 12972, 18492, 18894, 24863, 35443, 37788, 49726, 70886, 72427, 74589, 99452, 106329, 141772, 144854, 149178, 212658, 217281, 289708, 298356, 425316, 434562, 869124, 1665821, 3331642, 4997463, 6663284, 9994926, 19989852]

約数ペア:

[(1, 19989852), (2, 9994926), (3, 6663284), (4, 4997463), (6, 3331642), (12, 1665821), (23, 869124), (46, 434562), (47, 425316), (67, 298356), (69, 289708), (92, 217281), (94, 212658), (134, 149178), (138, 144854), (141, 141772), (188, 106329), (201, 99452), (268, 74589), (276, 72427), (282, 70886), (402, 49726), (529, 37788), (564, 35443), (804, 24863), (1058, 18894), (1081, 18492), (1541, 12972), (1587, 12596), (2116, 9447), (2162, 9246), (3082, 6486), (3149, 6348), (3174, 6298), (3243, 6164), (4324, 4623)]